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author:(Liliane J dable)
1.  Utilization trends in inpatient endoscopic retrograde cholangiopancreatography (ERCP): A cross-sectional US experience 
Endoscopy International Open  2017;5(4):E261-E271.
Study aims The goal of our study was to determine the current trends for inpatient utilization for endoscopic retrograde cholangiopancreatography (ERCP) and its economic impact in the United States between 2002 and 2013.
Patients and methods A Nationwide Inpatient Sample from 2002 through 2013 was examined. We identified ERCPs using International Classification of Diseases (ICD-9) codes; Procedure codes 51.10, 51.11, 52.13, 51.14, 51.15, 52.14 and 52.92 for diagnostic and 51.84, 51.86, 52.97 were studied. Rate of inpatient ERCP was calculated. The trends for therapeutic ERCPs were compared to the diagnostic ones. We analyzed patient and hospital characteristics, length of hospital stay, and cost of care after adjusting for weighted samples. We used the Cochran-Armitage test for categorical variables and linear regression for continuous variables.
Results A total of 411,409 ERCPs were performed from 2002 to 2013. The mean age was 59 ± 19 years; 61 % were female and 57 % were white. The total numbers of ERCPS increased by 12 % from 2002 to 2011, which was followed by a 10 % decrease in the number of ERCPs between 2011 and 2013.
There was a significant increase in therapeutic ERCPs by 37 %, and a decrease in diagnostic ERCPs by 57 % from 2002 to 2013. Mean length of stay was 7 days (SE = 0.01) and the mean cost of hospitalization was $20,022 (SE = 41).
Conclusions Our large cross-sectional study shows a significant shift in ERCPs towards therapeutic indications and a decline in its conventional diagnostic utility. Overall there has been a reduction in inpatient ERCPs.
PMCID: PMC5378548  PMID: 28382324
2.  Seasonal Variations and Trends in Hospitalization for Peptic Ulcer Disease in the United States: A 12-Year Analysis of the Nationwide Inpatient Sample 
Cureus  null;8(10):e854.
Peptic ulcer disease (PUD) is a major public health burden significantly impacting the cost of hospitalization in the United States (US). We examined the trends, characteristics, complications, cost, and seasonality of PUD-related hospitalizations from 2000 to 2011.
With the use of the Nationwide Inpatient Sample from 2000 through 2011, we identified PUD-related hospitalizations using the International Classification of Diseases (ICD-9), 9th Revision, and the Clinical Modification code 531.00 to 534.91 as the principal discharge diagnosis. The total number of hospitalizations for each calendar month of the year were added over a 12-year period, and this number was divided by the number of days in that particular month to obtain the mean hospitalizations per day for each month.
The study found that 351,921 hospitalizations with the primary discharge diagnosis of peptic ulcer disease (PUD) occurred in the US between 2000 and 2011. This number dropped significantly from 49,524 to 17,499 between 2000 and 2011, and the rate of PUD-related mortality decreased from 4.3% to 3.1%. The mean age of the study population was 66.2 ± 17.4 years; 52.3% were males, and 56.8% were white. The number of hospitalizations in the US peaked in the spring season (916/day), and reached a nadir in the fall season (861/day). The mean cost of PUD hospitalization increased significantly from $11,755 in 2001 to $13,803 in 2011 (relative increase of 17%; p <0.001).
The incidence of PUD and its mortality has decreased significantly in the last decade, but its economic burden on the healthcare system remains high. A seasonal pattern of PUD hospitalization showed a peak in PUD-related admissions in the spring season and a trough in the fall season.
PMCID: PMC5130352  PMID: 27909642
peptic ulcer disease; seasonal variation; national trends; hospitalization cost; nis; icd-9; los; coh; gastric ulcer; duodenal ulcer

Results 1-2 (2)