PMCC PMCC

Search tips
Search criteria

Advanced
Results 1-25 (56)
 

Clipboard (0)
None

Select a Filter Below

Authors
more »
Year of Publication
author:("asibi, neyman")
1.  Epidemiological features of irritable bowel syndrome and its subtypes among Iranian adults 
Background
The epidemiological features of irritable bowel syndrome (IBS) have not been properly investigated in Iran. Also, worldwide there is limited knowledge about the characteristics of IBS subtypes. The aim of the study was to explore the epidemiological features of IBS and its subtypes among Iranian adults.
Methods
This is a cross-sectional study in Iranian adults living in Isfahan province. Demographic characteristics and common gastrointestinal symptoms were assessed using a self-administered modified Persian version of the Rome III questionnaire.
Results
In 4763 subjects aged 19-70 years the overall prevalence of IBS was 21.5%. IBS was more prevalent in women than men (24.0 vs. 18.3%, P<0.001). In multivariate analysis, being married was associated with 27% increased odds of IBS (95% confidence interval: 1.03-1.57, P<0.05). However, IBS was not associated with age (P=0.71) or educational attainment (P=0.61). Constipation-predominant IBS (IBS-C) was the most prevalent subtype of IBS followed by mixed IBS (IBS-M), diarrhea-predominant IBS (IBS-D), and unsubtyped IBS. Female gender was associated with IBS-C while male gender was associated with IBS-D and IBS-M.
Conclusion
IBS is highly prevalent among Iranian adults, affecting particularly women in whom IBS-C is the most prevalent subtype.
PMCID: PMC4367216  PMID: 25831414
Irritable bowel syndrome; subtypes; prevalence; Iran
2.  The association of personality traits and coping styles according to stress level 
Background:
Some personality traits and coping styles could be as risk factors in stressful situations. This study aimed to investigate the association of personality traits and coping styles according to the stress level.
Meterials and Methods:
This cross-sectional study was performed in 2011. A total of 4628 individuals over 20 years were selected by random sampling from nonacademic employees that working in 50 different centers across Isfahan province. Data were collected using 12-item General Health Questionnaire (GHQ-12), Big Five Personality Inventory Short Form and coping strategies scale, and individuals were divided into high and low-stress groups in term of GHQ-12. To analyze the data, a binary logistic regression analysis was conducted.
Results:
Mean age of participants was 36.3 ± 7.91 years and 56.26% (2604) of them were female. Neuroticism with adjusting covariates of demographic characteristics and the rest of personality traits was a risk factor for stress level with odds ratios (OR) OR:1.24; but other personality traits were protective. Also, active coping styles were protective factors for OR of stress level with adjusting covariates of demographic characteristics and the rest of coping styles, and positive reinterpretation and growth was the most effective of coping style with OR:0.84.
Conclusion:
Some personality traits are associated with passive copings and cause high-stress level. So, it could be concluded that improve and strengthen effective coping strategies in individual with maladaptive traits should be considered as a crucial component of prevention and control programs of stress.
PMCID: PMC4468450  PMID: 26109990
Coping styles; personality traits; stress level
3.  Challenges of the ward round teaching based on the experiences of medical clinical teachers 
Background:
Holding educational sessions in a clinical environment is a major concern for faculty members because of its special difficulties and restrictions. This study attempts to recognize the challenges of the ward round teaching through investigating the experiences of clinical teachers in 2011.
Materials and Methods:
This qualitative research is carried out through purposive sampling with maximum variation from among the clinical teachers of major departments in Isfahan University of Medical Sciences (9 persons). The sampling continued until data saturation. Data were collected through semi-structured interview and analyzed through Collaizzi method. Data reliability and validity was confirmed through the four aspects of Lincoln and Guba method (credibility, conformability, transferability, and dependability).
Results:
Three major themes and their related sub-themes (minor themes) were found out including the factors related to the triad of clinical teaching (patient, learner, and clinical teacher) (concern about patient's welfare, poor preparation, lack of motivation, ethical problems), factors related to the educational environment (stressful environment, humiliating environment and poor communication) and the factors related to the educational system of the clinical environment (poor organizing and arrangement of resources, poor system's monitoring, bad planning and inadequate resource).
Conclusion:
Ward round teaching has many concerns for teachers, and this should be recognized and resolved by authorities and teachers. If these problems are not resolved, it would affect the quality of clinical teaching.
PMCID: PMC4468233  PMID: 26109975
Challenge; clinical teacher; clinical teaching; qualitative study; ward round teaching
4.  Surveillance of acute respiratory infections among outpatients: A pilot study in Isfahan city 
Background:
Considering that there was not any regional survey in Isfahan, Iran regarding the epidemiology of acute respiratory tract infections (ARTI) in different age groups of general population, the aim of this study was to determine the epidemiologic feature of ARTIs in Isfahan using multiplex polymerase chain reaction (PCR) method.
Materials and Methods:
In this cross-sectional study, patients aged <80 years with symptoms of ARTI were studied, during 2009-2010 Nasopharyngeal and dry throat swab specimens were collected and pathogens of ARTI was determined using multiplex real-time PCR.
Results:
In this study, 455 cases with ARTI were studied. Mean age of studied population was 29.9 ± 18.5 (range: 0.2-80). Symptoms such as sore throat (86.3%), coryza (68.0%) and dry cough (54.3%) were the most common symptoms in all studied groups, whereas fever was the most clinical presentation of younger patients (<15 years old) and headache and skeletal pain were the most common symptoms of older patients (>15 years old). Rhinovirus was the most common cause of ARTI in patients aged <5 years and those aged >50 years. Influenza virus B was the most common cause of ARTI in patients aged 5-50 years.
Conclusion:
Our study provides baseline information on the epidemiologic and clinical feature of outpatients with ARTIs in Isfahan city. Though our findings in this pilot study could be helpful in diagnosis, treatment, and prevention of ARTI, planning preventive interventional.
PMCID: PMC4400703  PMID: 25983761
Acute respiratory tract infection; multiplex polymerase chain reaction; surveillance
5.  The prevalence of isolated hepatitis B core antibody and its related risk factors among male injected drug users in Isfahan prisons 
Background:
The prevalence of isolated hepatitis B core antibody (anti-HBc) varies between 1% and 30% in different populations. Isolated anti-HBc-positive patients who suffer from occult hepatitis B virus (HBV) infection have the potential to transmit HBV infection. So isolated anti-HBc screening is a valuable tool to prevent HBV transmission. Considering the importance of isolated anti-HBc screening and high prevalence of HBV among injected drug users (IDU) prisoners, we designed this study to evaluate the isolated anti-HBc positivity among inmates with the history of IDU in our area.
Materials and Methods:
We did this cross-sectional study from September 2009 to March 2010 among volunteer male IDU prisoners in Isfahan. Blood samples were taken from all of subjects and tested for HBV markers. Then a questionnaire containing socio-demographic, drug histories and high risk behaviors information was completed for all participants. Data analysis was done utilizing univariate analysis and multiple logistic regressions. A P < 0.05 was considered significant.
Results:
Totally 970 male IDU prisoners (mean age 32.6 ± 8.1) were included in our study. The prevalence of isolated HBc Ab was 4.5%. Isolated anti-HBc significantly was related to tooth filling (OR: 2.62, CI: 1.20-7.14) and imprisonment (OR: 3.95, CI: 1.39-11.18). We couldn’t find any relationship between isolated anti-HBc positivity and addiction duration, incarceration frequency, recent incarceration duration or number of injection per month.
Conclusion:
For screening high risk groups in parallel with hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (HBsAb) and other viral markers, maybe it is better to check HBcAb too, because isolated HBcAb-positive patients may have occult hepatitis B infection which could transfer the infection to others.
doi:10.4103/2277-9175.148675
PMCID: PMC4333428  PMID: 25709982
Injected drug users; isolated anti hepatitis B core; prison
6.  Pimpinella anisum in the treatment of functional dyspepsia: A double-blind, randomized clinical trial 
Background:
We aimed to evaluate the effects of Pimpinella anisum (anise) from Apiaceae family on relieving the symptoms of postprandial distress syndrome (PDS) in this double-blind randomized clinical trial.
Materials and Methods:
Totally, 107 patients attending the gastroenterology clinic, aged 18-65 years, diagnosed with PDS according to ROME III criteria and signed a written consent form were enrolled. They were randomized to receive either anise or placebo, blindly, for 4 weeks. Anise group included 47 patients and received anise powders, 3 g after each meal (3 times/day). Control group involved 60 patients and received placebo powders (corn starch), 3 gafter each meal (3 times/day). The severity of Functional dyspepsia (FD) symptoms was assessed by FD severity scale. Assessments were done at baseline and by the end of weeks 2, 4 and 12. Mean scores of severity of FD symptoms and the frequency distribution of patients across the study period were compared.
Results:
The age, sex, body mass index, smoking history, and coffee drinking pattern of the intervention and control groups were not significantly different. Mean (standard deviation) total scores of FD severity scale before intervention in the anise and control groups were 10.6 (4.1) and 10.96 (4.1), respectively (P = 0.6). They were 7.04 (4.1) and 12.30 (4.3) by week 2, respectively (P = 0.0001), 2.44 (4.2) and 13.05 (5.2) by week 4, respectively (P = 0.0001), and 1.08 (3.8) and 13.30 (6.2) by week 12, respectively (P = 0.0001).
Conclusion:
This study showed the effectiveness of anise in relieving the symptoms of postpartum depression. The findings were consistent across the study period at weeks 2, 4 and 12.
PMCID: PMC4354059  PMID: 25767516
Anise; functional dyspepsia; Pimpinella anisum; postprandial distress syndrome
7.  Pimpinella anisum in modifying the quality of life in patients with functional dyspepsia: A double-blind randomized clinical trial 
Background:
We aimed to assess the effects of anise on quality of life (QOL) of patients with functional dyspepsia (FD) in a double-blind randomized clinical trial.
Materials and Methods:
Of 180 patients attending the gastroenterology clinic, 107 ones with the diagnosis of postprandial distress syndrome according to Rome III criteria were enrolled. They were randomized into two groups, anise and placebo. Anise group involved 47 patients and received anise powders, 3 g after each meal (3 times/day) for 4 weeks. Control group had 60 patients who received placebo powders (cornstarch), 3 g after each meal (3 times/day) for 4 weeks. The QOL was assessed by short-form (SF)-36 questionnaire. Mean scores of eight health domains of the two groups were compared at baseline and at the end of study.
Results:
The age, sex, body mass index, smoking history, tea and coffee drinking patterns of the two groups were not significantly different. All domains of SF-36 were similar between the two groups at baseline but were significantly different at week 12. At baseline, mean score of physical component summary was 159 in placebo group and 167 in anise group (P = 0.1). At week 12, the score was 141 in placebo group and 251 in anise group (P = 0.0001). Mean baseline score of mental component summary was 172 and 165 in placebo and anise groups, respectively (P = 0.1). At week 12, the score was 135 in placebo group and 233 in anise group (P = 0.0001).
Conclusion:
The current study revealed the effectiveness of anise in improvement of QOL in patients with FD.
PMCID: PMC4333517  PMID: 25709650
Anise; functional dyspepsia; Pimpinella anisum; postprandial distress syndrome; quality of life; short-form-36
8.  What's the role of perceived social support and coping styles in depression and anxiety? 
Background:
Due to the excessive and pathologic effects of depression and anxiety, it is important to identify the role of protective factors, such as effective coping and social support. This study examined the associations between perceived social support and coping styles with depression and anxiety levels.
Materials and Methods:
This cross sectional study was part of the Study on the Epidemiology of Psychological, Alimentary Health and Nutrition project. A total 4658 individuals aged ≥20 years was selected by cluster random sampling. Subjects completed questionnaires, which were used to describe perceived social support, coping styles, depression and anxiety. t-test, Chi-square test, pearson's correlation and Logistic regression analysis were used in data analyses.
Results:
The results of Logistic regression analysis showed after adjusting demographic characteristics for odd ratio of anxiety, active copings such as positive re-interpretation and growth with odds ratios; 95% confidence interval: 0.82 (0.76, 0.89), problem engagement (0.92 [0.87, 0.97]), acceptance (0.82 [0.74, 0.92]) and also among perceived social supports, family (0.77 [0.71, 0.84]) and others (0.84 [0.76, 0.91]) were protective. In addition to, for odd ratio of depression, active copings such as positive re-interpretation and growth (0.74 [0.69, 0.79]), problem engagement (0.89 [0.86, 0.93]), and support seeking (0.96 [0.93, 0.99]) and all of social support types (family [0.75 (0.70, 0.80)], friends [0.90 (0.85, 0.95)] and others [0.80 (0.75, 0.86)]) were protective. Avoidance was risk factor for both of anxiety (1.19 [1.12, 1.27]) and depression (1.22 [1.16, 1.29]).
Conclusion:
This study shows active coping styles and perceived social supports particularly positive re-interpretation and family social support are protective factors for depression and anxiety.
PMCID: PMC4274570  PMID: 25538777
Anxiety; coping styles; depression; perceived social support
9.  Composite Lymphoma in a Patient with Ulcerative Colitis: A Case Report 
A 45-year-old female patient with a diagnosis of ulcerative colitis complicated with composite lymphoma in the spleen and para-aortic lymph node presented with a one-month history of malaise, weakness and fatigue. Only mesalamine kept ulcerative colitis under control. In physical examination, splenomegaly was revealed and pancytopenia was obtained from laboratory data. Computed tomography scan revealed para-aortic mediastinal lymphadenopathy with splenomegaly. Splenectomy and excisional biopsy of abdominal lymph node were performed and disease was diagnosed as composite lymphoma, consisting of diffuse large B-cell lymphoma and nodular sclerosing Hodgkin lymphoma.
PMCID: PMC4345297  PMID: 25774267
Composite lymphoma; Nodular sclerosing Hodgkin lymphoma; Diffuse large B-Cell lymphoma; Inflammatory bowel disease; Ulcerative colitis
10.  Inflammatory cells’ role in acetic acid-induced colitis 
Background:
Free radicals are the known mechanisms responsible for inducing colitis with two origins: Inflammatory cells and tissues. Only the inflammatory cells can be controlled by corticosteroids. Our aim was to assess the importance of neutrophils as one of the inflammatory cells in inducing colitis and to evaluate the efficacy of corticosteroids in the treatment of inflammatory bowel disease (IBD).
Materials and Methods:
Thirty-six mice were divided into six groups of six mice each. Colitis was induced in three groups by exposing them to acetic acid through enema (group 1), ex vivo (group 3), and enema after immune suppression (group 5). Each group had one control group that was exposed to water injection instead of acetic acid. Tissue samples were evaluated and compared based on macroscopic damages and biochemical and pathological results.
Results:
Considering neutrophilic infiltration, there were significant differences between groups 1, 3, 5, and the control of group 1. Groups 3, 5, and their controls, and group 1 and the control of group 3 had significant differences in terms of goblet depletion. Based on tissue originated H2O2, we found significant differences between group 1 and its control and group 3, and also between groups 5 and the control of group 3. All the three groups were significantly different from their controls based on Ferric Reducing Ability of Plasma (FRAP) and such differences were also seen between group 1 with two other groups.
Conclusion:
Neutrophils may not be the only cause of oxidation process in colitis, and also makes the effectiveness of corticosteroids in the treatment of this disease doubtful.
doi:10.4103/2277-9175.140666
PMCID: PMC4202508  PMID: 25337523
Acetic acid-induced colitis; corticosteroid; inflammatory bowel disease; neutrophil infiltration
11.  N-acetyl cysteine as an adjunct to standard anti-Helicobacter pylori eradication regimen in patients with dyspepsia: A prospective randomized, open-label trial 
Background:
Increasing antibiotic resistance of Helicobacter pylori (H. pylori) which is associated with diseases of the upper gastrointestinal tract, has made alternative treatments necessary. This study compares the efficacy of adding N-acetyl cysteine (NAC) to standard regimen for H. pylori eradication.
Materials and Methods:
We conducted a randomized, open-label trial, comparing the efficacy of 14 days of quadruple therapy with Amoxicillin, Bismuth citrate, Omeprazole, Clarithromycin (group A) versus 14 days of above regimen plus NAC (group B) in adult patients with dyspepsia. Primary objective was H. pylori eradication. Compliance and side effects were determined by questionnaires. Our analysis was by intention-to-treat (ITT) and per-protocol. This study is registered with www.IRCT.ir, number: IRCT201201078634N1.
Result:
A total of 121 participants aged 21-76 years with a mean age of 44.5 ± 14.1, and 52.9% female, were randomly allocated a treatment: 60 with 14-day standard therapy and 61 with 14-day standard therapy with NAC. The eradication rate in groups A and B with ITT analyses was 49/60 (81.7%; 95% [confidence intervals] CI = 71.6-91.8%) and 50/61 (82%; 95% CI = 72-91.9%), respectively (P = 0.96). In per-protocol analysis, the rate of H. pylori eradication in groups A and B was 45/54 (83.3%; 95% CI = 73.1-93.6%) and 45/53 (84.9%; 95% CI = 74.9-94.9%), respectively (P = 0.82). Minor well tolerated side effects were reported in 15 (34.9%) and 21 (35.6%) patients of groups A and B, respectively, and only one therapy cessation in group A was created.
Conclusion:
Standard 14-day triple-drug therapy with NAC is not preferable to standard drug regimens for H. pylori infection.
doi:10.4103/2277-9175.140403
PMCID: PMC4189211  PMID: 25298958
Helicobacter pylori; Helicobacter pylori eradication; N-acetyl cysteine
12.  A cross-sectional population-based study on the association of personality traits with anxiety and psychological stress: Joint modeling of mixed outcomes using shared random effects approach 
Background:
Previous studies have showed some evidences about the relationship between personality traits particularly neuroticism and extroversion, separately, with psychological stress and anxiety. In the current study, we clarified the magnitude of joint interdependence (co-morbidity) of anxiety (continuous) and Psychological stress (dichotomous) as dependent variables of mixed type with five-factor personality traits as independent variables.
Materials and Methods:
Data from 3180 participants who attended in the cross-sectional population-based “study on the epidemiology of psychological, alimentary health and nutrition” and completed self-administered questionnaires about demographic and life style, gastrointestinal disorders, personality traits, perceived intensity of stress, social support, and psychological outcome was analyzed using shared random effect approach in R Free software.
Results:
The results indicated high scores of neuroticism increase the chance of high psychological stress (odds ratio [OR] = 5.1; P < 0.001) and anxiety score (B = 1.73; P < 0.001) after adjustment for the probable confounders. In contrast, those who had higher scores of extraversion and conscientiousness experienced lower levels of anxiety score (B = −0.54 and −0.23, respectively, P < 0.001) and psychological stress (OR = 0.36 and 0.65, respectively, P < 0.001). Furthermore, higher score of agreeableness had significant negative relationship with anxiety (B = −0.32, P < 0.001).
Conclusion:
The present study indicated that the scores of neuroticism, extraversion, agreeableness and conscientiousness strongly predict both anxiety and psychological stress in Iranian adult population. Due to likely mechanism of genetic and environmental factors on the relationships between personality traits and psychological disorders, it is suggested to perform longitudinal studies focusing on both genetic and environmental factors in Iranian population.
PMCID: PMC4268191  PMID: 25535497
Anxiety; psychological stress; personality traits; shared random effect model; mixed outcomes
13.  The study of mutation in 23S rRNA resistance gene of Helicobacter pylori to clarithromycin in patients with gastrointestinal disorders in Isfahan — Iran 
Background:
Helicobacter pylori antimicrobial resistance is an important factor responsible for treatment failure. The purpose of this study was evaluating the prevalence of point mutations in clarithromycin-resistant clinical isolates of H. pylori in Isfahan city of Iran.
Materials and Methods:
Thirty isolates of H. pylori from 130 biopsy specimens were isolated by culture and confirmed by biochemical and PCR tests. The MIC of clarithromycin antibiotic for 30 clinical isolates of H. pylori was determined by E-test method. The point mutations in the 288 bp of 23S rRNA gene of H. pylori were investigated in four clarithromycin-resistant clinical isolates by PCR followed by sequencing.
Results:
Among 30 isolates of H. pylori, 4 cases were resistant to clarithromycin. One point mutation was found at position T2243C in the 23S rRNA gene in all resistance isolates.
Conclusions:
In our study, H. pylori resistance to clarithromycin associated with point mutation at position 2243 (T2243C).
doi:10.4103/2277-9175.129368
PMCID: PMC4007339  PMID: 24800187
Clarithromycin resistance; Helicobacter pylori; point mutations
14.  Seroprevalence of hepatitis B markers among incarcerated intravenous drug users 
Background:
Drug injection is one of the most prominent risk factors for transmission of viral hepatitis. Prevalence of hepatitis B virus (HBV) is generally higher in prisoners compared with the general population. The object of this study was to assess the markers of HBV and related risk factors among intravenous drug users (IVDU) in prisoners.
Materials and Methods:
Through a cross-sectional study in 2012 HBV infection and its risk factors were assessed in prisoners with a history of intravenous drug use in Isfahan, Iran. A checklist was fulfilled for each participant and 5 ml blood was taken from each subject. Sera were analyzed for markers of the hepatitis B: Hepatitis B virus surface antigen (HBsAg), antibody to hepatitis B virus surface antigen (HBsAb) and hepatitis B virus core antibody (HBcAb) by ELISA. We used Chi-square test and logistic regression model to analyze data and P < 0.05 was considered to be significant.
Results:
All of the studied participants (n = 970) were men. The mean ± standard deviation of the age of the subjects was 32.61 ± 8.1 years and the majority of them had less than high school education. More than 40% of these men had a history of injection drug inside prison and 2.27% of them self-reported history of HBV infection. Of the 970 IVDU, 32 (3.3%) were positive for HBsAg. Among HBsAg + subjects, 23 (71.88%) were HBcAb+. 120 (12.37%) were found positive for isolated HBsAb, 45 (4.64%) for isolated HBcAb and 67 (6.9%) for both HBsAb and HBcAb. History of sharing needle (odds ratio: 2.25, 95% confidence interval: 1.09-4.65) had a significant association with HBsAg positivity.
Conclusion:
The results suggest that history of sharing needle had a significant association with HBsAg positivity. It seems that educational programs for injecting drug related behaviors, especially syringe sharing, are needed for IVDU.
PMCID: PMC4078382  PMID: 25002887
Hepatitis B virus; intravenous drug users; Isfahan; Prison
15.  A Dish-based Semi-quantitative Food Frequency Questionnaire for Assessment of Dietary Intakes in Epidemiologic Studies in Iran: Design and Development 
Background:
Earlier forms of food frequency questionnaire (FFQ) used in Iran have extensive lists of foods, traditional categories and food-based design, mostly with the interviewer-administered approach. The aim of the current paper is to describe the development of a dish-based, machine-readable, semi-quantitative food frequency questionnaire (DFQ).
Methods:
Within the framework of the Study on the Epidemiology of Psychological, Alimentary Health and Nutrition project, we created a novel FFQ using Harvard FFQ as a model.
Results:
The following steps were taken to develop the questionnaire: Construction of a list of commonly consumed Iranian foods, definition of portion sizes, design of response options for consumption frequency of each food item and finally a pilot test of the preliminary DFQ. From a comprehensive list of foods and mixed dishes, we included those that were nutrient-rich, consumed reasonably often or contributed to between-person variations. We focused on mixed dishes, rather than their ingredients, along with foods. To shorten the list, the related food items or mixed dishes were categorized together in one food group. These exclusions resulted in a list of 106 foods or dishes in the questionnaire. The portion sizes used in the FFQ were obtained from our earlier studies that used dietary recalls and food records. The frequency response options for the food list varied from 6-9 choices from “never or less than once a month” to “12 or more times per day”.
Conclusions:
The DFQ could be a reasonable dietary assessment tool for future epidemiological studies in the country. Validation studies are required to assess the validity and reliability of this newly developed questionnaire.
PMCID: PMC3915470  PMID: 24554989
Dietary assessment; food frequency questionnaire; Iran; nutritional epidemiology
16.  Manipulating measurement scales in medical statistical analysis and data mining: A review of methodologies 
Background:
selecting the correct statistical test and data mining method depends highly on the measurement scale of data, type of variables, and purpose of the analysis. Different measurement scales are studied in details and statistical comparison, modeling, and data mining methods are studied based upon using several medical examples. We have presented two ordinal–variables clustering examples, as more challenging variable in analysis, using Wisconsin Breast Cancer Data (WBCD).
Ordinal-to-Interval scale conversion example:
a breast cancer database of nine 10-level ordinal variables for 683 patients was analyzed by two ordinal-scale clustering methods. The performance of the clustering methods was assessed by comparison with the gold standard groups of malignant and benign cases that had been identified by clinical tests.
Results:
the sensitivity and accuracy of the two clustering methods were 98% and 96%, respectively. Their specificity was comparable.
Conclusion:
by using appropriate clustering algorithm based on the measurement scale of the variables in the study, high performance is granted. Moreover, descriptive and inferential statistics in addition to modeling approach must be selected based on the scale of the variables.
PMCID: PMC3963323  PMID: 24672565
Biostatistics; breast cancer; cluster analysis; data mining; research design
17.  Resistance pattern of Helicobacter pylori strains to clarithromycin, metronidazole, and amoxicillin in Isfahan, Iran 
Background:
Helicobacter pylori (H. pylori) resistance to antibiotics has become a global problem and is an important factor in determining the outcome of treatment of infected patients. The purpose of this study was to determine the H. pylori resistance to clarithromycin, metronidazole, and amoxicillin in gastrointestinal disorders patients.
Materials and Methods:
In this study, a total of 260 gastric antrum biopsy specimens were collected from patients with gastrointestinal disorders who referred to Endoscopy Section of the Isfahan Hospitals. The E-test and Modified Disk Diffusion Method (MDDM) were used to verify the prevalence of antibiotic resistance in 78 H. pylori isolates to the clarithromycin, metronidazole, and amoxicillin.
Results:
H. pylori resistance to clarithromycin, metronidazole, and amoxicillin were 15.3, 55.1, and 6.4%, respectively. In this study, we had one multidrug resistance (MDR) isolates from patient with gastritis and peptic ulcer disease.
Conclusion:
Information on antibiotic susceptibility profile plays an important role in empiric antibiotic treatment and management of refractive cases. According to the results obtained in this study, H. pylori resistance to clarithromycin and metronidazole was relatively high. MDR strains are emerging and will have an effect on the combination therapy.
PMCID: PMC3908526  PMID: 24523796
Amoxicillin; clarithromycin; Helicobacter pylori; metronidazole
18.  Epidemiology and Risk Factors of Tooth Loss among Iranian Adults: Findings from a Large Community-Based Study 
BioMed Research International  2013;2013:786462.
Objectives. To investigate the prevalence of tooth loss and different prosthetic rehabilitations among Iranian adults, as well as the potential determinants of tooth loss. Methods. In a cross-sectional community-based study conducted among 8094 Iranian adults living in Isfahan province, a self-administered questionnaire was used to assess epidemiologic features of tooth loss. Results. Thirty-two percent of subjects had all their teeth, 58.6% had lost less than 6, and 7.2% of participants had lost more than 6 teeth. One hundred and sixty-nine individuals (2.2%) were edentulous. Among participants, 2.3% had single jaw removable partial denture, 3.6% had complete removable denture in both jaws, and 4.6% had fixed prosthesis. Others reported no prosthetic rehabilitation (89.5%). In the age subgroup analysis (≤35 and >35 years old) tooth loss was more prevalent among men than women (OR = 2.8 and 1.9, resp., P < 0.01). Also, in both age groups, current and former smokers had higher levels of tooth loss than nonsmokers (P < 0.001 and P < 0.05, resp.). In addition, tooth loss was positively related to metabolic abnormality for age group >35 years (adjusted OR = 1.29, P < 0.01). Conclusions. Tooth loss is highly prevalent in Iranian adult population. Community programs promoting oral health for prevention of tooth loss should be considered taking into account its major determinants including lower educational level, male gender, smoking, and metabolic abnormality.
doi:10.1155/2013/786462
PMCID: PMC3818816  PMID: 24228259
19.  Consumption of spicy foods and the prevalence of irritable bowel syndrome 
AIM: To explore the association between consumption of spicy foods and prevalence of irritable bowel syndrome (IBS) among Iranian adults.
METHODS: In this cross-sectional study, data from 4763 Iranian adult participants were used. Consumption of spicy foods was estimated using a dietary habits questionnaire that included a question on spicy foods consumption: “how frequently do you use spicy foods (pepper, curry, ginger, cinnamon and turmeric) during a week?” Participants could respond to the question by choosing one of these choices: never, 1-3 times, 4-6 times, 7-9 times, or more than 10 times per week. A modified Persian version of the Rome III questionnaire was used to determine the prevalence of IBS.
RESULTS: IBS was prevalent in 21.7% (18.6% of men and 24.1% of women) of the study population. After controlling for potential confounders including dietary behaviors, those consuming spicy foods ≥ 10 times per week were 92% more likely to have IBS compared with those who never consumed spicy foods (OR = 1.92; 95%CI: 1.23-3.01, Ptrend < 0.01). The association remained significant even after taking lactose intolerance into account (OR = 1.85; 95%CI: 1.18-2.90, Ptrend < 0.01). Stratified analysis by gender revealed that the association between consumption of spicy foods and IBS was not significant in men; however, a significant association was found among women after taking potential cofounders, including meal regularity and lactose intolerance, into account. Women who consumed spicy foods ≥ 10 times per week were two times more likely to have IBS compared with those who never consumed spicy foods (OR = 2.03; 95%CI: 1.09-3.77, Ptrend = 0.02).
CONCLUSION: Consumption of spicy foods is directly associated with IBS, particularly in women. Further, prospective studies are warranted to (1) examine this association in other populations; and (2) evaluate whether dietary interventions, for example a reduction in spice consumption, would improve IBS symptoms.
doi:10.3748/wjg.v19.i38.6465
PMCID: PMC3801318  PMID: 24151366
Spice; Diet; Condiments; Red pepper; Irritable bowel syndrome; Functional gastrointestinal disorders
20.  The effect of ward round teaching on patients: The health team and the patients’ perspectives 
Introduction:
Holding bedside round teaching and involving patients in the teaching of the students might lead to patients’ dissatisfaction. This study was carried out in order to find the viewpoints of the patients and the medical team about the effect of clinical round on patients hospitalized in Isfahan University of Medical Sciences.
Materials and Methods:
This study is of cross-sectional descriptive type which is carried out in Isfahan University of Medical Sciences using researcher-made tools. The statistical population included the hospitalized patients, interns, residents, and nurses of the internal wards of educational hospitals. In this study, 110 patients and 150 health team staff are participated. The analysis of the data was done through software Statistical Package for Social Science (SPSS) 11.5 and descriptive and inferential statistics were applied. Statistical analysis of the variance did not show any significant difference among the interns’, nurses’, and residents’ perception of patient's satisfaction.
Results:
Generally, the patients had a positive viewpoint toward things happening during a round, whereas the medical team's viewpoint was negative. In both groups, the highest satisfaction average pertained to the number of times and the duration of visits, but both groups believed that lack of a definite responsible medical doctor, feeling of insecurity during the incongruous and unclear discussions, and the level of respect for the patient were the causes of dissatisfaction with the clinical round process.
Conclusion:
The current method of clinical rounds can result in patients’ dissatisfaction. On the other hand, proper relationship with them leads to the development of a more positive attitude in them. Therefore, revision and correction of the current clinical round procedures and teaching the communication skills to the medical team could help improve this process.
doi:10.4103/2277-9531.115824
PMCID: PMC3778568  PMID: 24083285
Clinical education; health team; patient; perspectives; ward round teaching
21.  Dietary Quality Indices and Biochemical Parameters Among Patients With Non Alcoholic Fatty Liver Disease (NAFLD) 
Hepatitis Monthly  2013;13(7):e10943.
Background
Dietary intake might have important role in non-alcoholic fatty liver diseases (NAFLD). Although, there are some reports on dietary intake and anthropometrics measurements, few studies have focused on the markers of assessing whole diet like dietary quality indices.
Objectives
Therefore, our aim was to determine the diet quality indices and biochemical parameters among patients with NAFLD and healthy individuals.
Patients and Methods
This case-control study was performed on 100 patients with NAFLD and 100 healthy subjects who were attending to Gastrointestinal Research Center, Baqiyatallah University, Tehran, Iran during the recent years. Usual dietary intake was assessed by three dietary records (one weekend and two week days). Healthy eating index (HEI), dietary diversity score (DDS), dietary energy density (DED), mean adequacy ratio of nutrients (MAR) were assessed according to the standard methods.
Results
Patients with NAFLD had higher body mass index, weight and waist circumference compared to the healthy group (P < 0.05). Serum levels of liver enzymes, triglyceride, LDL, BUN, and uric acid were higher in patients with NAFLD (P < 0.05). Although patients with NAFLD had higher energy, carbohydrate and fat intake, their values for antioxidant vitamins, calcium and vitamin D were lower than healthy subjects (P < 0.05). HEI and MAR were higher among healthy group, and DED was lower among them. Nutrient adequacy ratio for calcium, vitamin D, and antioxidant micronutrients were lower in patients with NAFLD (P < 0.05).
Conclusions
It seems that dietary quality indices may be associated with NAFLD. Calcium, vitamin D, and antioxidant micronutrients intake might be lower among patients with NAFLD based on this case-control study. Further prospective studies should be conducted in this regard.
doi:10.5812/hepatmon.10943
PMCID: PMC3776150  PMID: 24065998
Diet Therapy; Healthy People Programs; Biochemical Processes; Non-alcoholic Fatty Liver Disease
22.  Evaluating the efficacy of Salsalate on prediabetic and diabetic patients with fatty liver: A randomized clinical trial 
Objective:
Nearly two-third of the patients with type 2 diabetes have degrees of fatty liver; this may induce some side effects in them. This study aimed to find effect of salsalate on treatment of steatohepatitis and correlation of fatty liver with metabolic syndrome in the setting of impaired glucose metabolism.
Methods:
In a double-blind randomized trial within two distinct groups, i.e., recently diagnosed diabetics and prediabetic cases allocated in two arms of the intervention to receive 3 g salsalate or placebo. All cases underwent glucose and lipid level studies and liver ultrasound study.
Findings:
Out of 46 patients with diabetes, 34 (74%) had fatty liver in ultrasound; this ratio was 75% in 113 prediabetic cases. Relative frequency of fatty liver stages did not differ between diabetics and prediabetics. Within diabetics, mean aspartate aminotransferase (AST) level of fatty liver cases (23 ± 7 IU/dl) was higher than others (18 ± 3 IU/dl) (P < 0.05). Changes in transaminase levels following intervention did not significantly differ, comparing drug and placebo arms in two subgroups.
Conclusion:
According to the findings, if diabetes could be assumed as the logical consequence of prediabetic state, it seems that fatty liver did develop before this preliminary status. In this study, salsalate could not change biochemical markers of fatty liver significantly.
doi:10.4103/2279-042X.114089
PMCID: PMC4076898  PMID: 24991603
Diabetes; fatty liver; salsalate
23.  What variables can influence clinical reasoning? 
Background:
Clinical reasoning is one of the most important competencies that a physician should achieve. Many medical schools and licensing bodies try to predict it based on some general measures such as critical thinking, personality, and emotional intelligence. This study aimed at providing a model to design the relationship between the constructs.
Materials and Methods:
Sixty-nine medical students participated in this study. A battery test devised that consist four parts: Clinical reasoning measures, personality NEO inventory, Bar-On EQ inventory, and California critical thinking questionnaire. All participants completed the tests. Correlation and multiple regression analysis consumed for data analysis.
Results:
There is low to moderate correlations between clinical reasoning and other variables. Emotional intelligence is the only variable that contributes clinical reasoning construct (r=0.17-0.34) (R2 chnage = 0.46, P Value = 0.000).
Conclusion:
Although, clinical reasoning can be considered as a kind of thinking, no significant correlation detected between it and other constructs. Emotional intelligence (and its subscales) is the only variable that can be used for clinical reasoning prediction.
PMCID: PMC3703170  PMID: 23853636
Clinical reasoning; critical thinking; emotional intelligence; personality
24.  Personality dimensions and type D personality in female patients with ulcerative colitis 
Aim:
Psychological factors such as personality traits may affect the adjustment capacity and Quality of Life (QOL) in Ulcerative Colitis (UC) patients. Type D personality has some similarities with general personality traits of UC patients. The aims of this study were to compare NEO personality profile and type D personality between healthy normal group and UC patients; and to determine the possible relationship between type D personality and QOL in UC patients.
Materials and Methods:
The sample of study comprised of 58 UC patients and 59 healthy control subjects (from their family members). All participants were requested to fill out NEO-FFI, Type D personality (Ds14) Scale and WHO-Quality of Life Questionnaire.
Results:
The findings indicated that UC patients scored higher in neuroticism (P<0/01); lower in extraversion (P<0/01) and openness (P<0/05) than healthy controls but their differentiation were not significant in agreeableness and conscientiousness. The findings showed that 59% of UC patients and 33% of the control subjects had type D personality; and the differences in frequency of type D between the two groups were significant (P<0/05). The mean QOL scores of type D personality in UC patients was significantly lower than patients without type D personality (F= 7/55, P<0/01). Type D personality could better predict QOL of UC patients than NEO dimensions.
Conclusions:
Differences were observed between UC patients and their healthy family members, in terms of personality factors. Type D personality may be regarded as an important factor that may bring about some adverse effects in QOL among UC patients.
PMCID: PMC3698645  PMID: 23825986
Colitis; personality; quality of Life; ulcerative
25.  Using TOSCE (Team Objective Structured Clinical Examination) in the second national medical sciences olympiad in Iran 
Introduction:
Second National Medical Sciences Olympiad was done in Shiraz in August 2010 with aim of indentifying scientifically talented individuals, motivating students and orienting extracurricular activities. This Olympiad was done in 3 areas, basic sciences, clinical sciences and management. In clinical sciences, we used TOSCE (Team Objective Structured Clinical Examination). In this article we report the details of this exam and participants’ satisfaction.
Materials and Methods:
This Olympiad in Clinical Medical Sciences was held in 2 levels: Individual and team. In the team stage, 9 teams from 9 universities participated. We used TOSCE for measuring clinical competency of teams. Each team consisted of 3 students. We designed 12 stations based on emergency medicine in medical and surgical fields. The time considered for each station was 15 min, after doing this exam the view of students was measured using a valid and reliable questionnaire.
Results:
Most of the students believed that TOSCE was a useful examination for measuring competency. More than 50% of students reported that success in this exam needs clinical competency, team work and problem solving ability. Nearly, half (48.1%) of students believed that 15 min is not enough for each station and they need more time.
Conclusion:
The results of this study showed that this kind of exam is useful for measuring clinical competency from students’ viewpoint.
PMCID: PMC3698659  PMID: 23826000
Medical students; olympiad; TOSCE

Results 1-25 (56)