Prevalence of tuberculin skin test reactions among prison workers.
OBJECTIVE
To determine the prevalence of positive tuberculin skin test (TST) reactions (10 mm or greater) among full-time employees of a provincial prison for women in Montreal.


METHODS
Participants underwent tuberculin skin testing and completed a self-administered questionnaire.


RESULTS
Among 129 employees identified, 118 (91%) underwent tuberculin testing. Among 102 born in Quebec who completed the questionnaire, 33 (32%) had positive TST reactions, including 12 (23%) of 52 subjects who had never been vaccinated. Positive TST reactions were significantly associated in multivariate analysis with BCG vaccination after infancy (OR = 4.5, 95% CI = 1.5-13.5), years of work at other provincial prisons (OR = 2.5 for each 5 years of work, 95% CI = 1.2-5.2), travel to tuberculosis endemic countries (OR = 7.7, 95% CI = 1.4-43), although not with work in the prison for women (OR = 1.3, 95% CI = 0.9-1.9)


CONCLUSIONS
The prevalence of positive TST reactions was greater among workers at a provincial prison for women than among a sample of students, suggesting increased occupational risk of tuberculosis infection.
Jochem
K
K
Nuffield Institute for Health, University of Leeds.
Tannenbaum
T N
TN
Menzies
D
D
D001500:BCG Vaccine; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D016273:Occupational Exposure; D015995:Prevalence; D011330:Prisons; D011792:Quebec; D012307:Risk Factors; D011795:Surveys and Questionnaires; D014374:Tuberculin Test; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis / Q000453:epidemiology* / Q000635:transmission
D001500:BCG Vaccine