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author:("Shah, meet")
1.  Geographic Variations in Microbial Keratitis: An analysis of the Peer-Reviewed Literature 
The epidemiology of microbial keratitis has been investigated in several studies by analysis of organisms cultured from corneal scrapes. However, a comparison of the frequency of different organisms causing keratitis in different parts of the world is lacking. We present a review incorporating an analysis of data from studies worldwide. The data provide a comparison of the frequency of culture-positive organisms found in different parts of the world.
The highest proportion of bacterial corneal ulcers was reported in studies from North America, Australia, the Netherlands and Singapore. The highest proportion of staphylococcal ulcers was found in a study from Paraguay whilst the highest proportion of pseudomonas ulcers was reported in a study from Bangkok. The highest proportions of fungal infections were found in studies from India and Nepal. Possible explanations for these observed geographic variations are discussed.
PMCID: PMC3403809  PMID: 21478201
cornea; keratitis; eye; infection; epidemiology
2.  Prevalence of At-Risk Drinking among a National Sample of Medical Students 
Limited research exists on medical students’ substance use patterns including over-consumption of alcohol.
To determine prevalence and correlates of at-risk drinking among a national sample of medical students.
Cross-sectional, anonymous, web-based survey. 2710 medical students from 36 U.S. medical schools (1st – 4th year) completed the survey. Included in the instruments was a 10-item scale (AUDIT) to assess at-risk drinking behaviors within the last 12 months.
Over 15% of the subjects (n= 412) scored positive for at-risk drinking (8≥). Multivariate analysis of the data revealed the following independent predictors were statistically significant (p ≤ 0.05) for at-risk drinking: being of younger age, male, unmarried, using illicit drugs, smoking tobacco products within the last 30 days, having low perception of risk, showing impulsive behavior, being depressed, and having gambling problems.
Findings from this study provides initial data for investigating further associations between risky drinking behavior, lifestyle, and psychosocial factors, as well as effectiveness of curriculum or campus wide policy interventions to reduce over-consumption of drinking among this population.
PMCID: PMC2714543  PMID: 19347753
medical student; medical school; alcohol; at-risk drinking; risky behaviors; behaviors

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