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Risk factors for tuberculosis among health care workers in South India: a nested case-control study.
MedLine Citation:
PMID:  22521578     Owner:  NLM     Status:  Publisher    
OBJECTIVE: The epidemiology of tuberculosis (TB) among health care workers (HCWs) in India remains under-researched. This study is a nested case-control design assessing the risk factors for acquiring TB among HCWs in India. STUDY DESIGN AND SETTINGS: It is a nested case-control study conducted at a tertiary teaching hospital in India. Cases (n=101) were HCWs with active TB. Controls (n=101) were HCWs who did not have TB, randomly selected from the 6,003 subjects employed at the facility. Cases and controls were compared with respect to clinical and demographic variables. RESULTS: The cases and controls were of similar age. Logistic regression analysis showed that body mass index (BMI) <19kg/m(2) (odds ratio [OR]: 2.96, 95% confidence interval [CI]: 1.49-5.87), having frequent contact with patients (OR: 2.83, 95% CI: 1.47-5.45) and being employed in medical wards (OR: 12.37, 95% CI: 1.38-110.17) or microbiology laboratories (OR: 5.65, 95% CI: 1.74-18.36) were independently associated with increased risk of acquiring TB. CONCLUSION: HCWs with frequent patient contact and those with BMI <19kg/m(2) were at high risk of acquiring active TB. Nosocomial transmission of TB was pronounced in locations, such as medical wards and microbiology laboratories. Surveillance of high-risk HCWs and appropriate infrastructure modifications may be important to prevent interpersonal TB transmission in health care facilities.
Anoop Mathew; Thambu David; Kurien Thomas; P J Kuruvilla; V Balaji; Mary V Jesudason; Prasanna Samuel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-19
Journal Detail:
Title:  Journal of clinical epidemiology     Volume:  -     ISSN:  1878-5921     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8801383     Medline TA:  J Clin Epidemiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Department of Medicine, Christian Medical College Hospital, Ida Scudder Road, Vellore 632004, Tamil Nadu, India.
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