Canadian journal of public health = Revue canadienne de sante publique · 1999
[Epidemiological study of a tuberculosis case in a large manufacturing enterprise in Quebec].
Аннотация на английскомСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Drolet M J, Boisvert R, Déry S, Laliberté D
Аннотация
OBJECTIVES: To determine the prevalence of tuberculosis infection related to a case of pulmonary and laryngeal tuberculosis in a workplace and to study PPD predictors.
METHODS: The Mantoux skin test (PPD) was offered to all potentially infected contacts. Participants were asked to answer a questionnaire.
RESULTS: Among 112 exposed employees, 92 (82.1%) were tested. At the 5 mm level, 65.2% of employees had positive tuberculin skin test (PPD). By controlling prior BCG and the degree of exposure, it showed a positive association between age and PPD (RC: 3.5; 95% CI: 1.25-10.03). When age and BCG were controlled, high exposure was statistically associated with PPD results (RC: 5.6; 95% CI: 1.25-24.68).
CONCLUSION: The observed prevalence rate is probably related to the fact that the index case was very infectious and had contact in an enclosed area over a long period of time before withdrawal from work.
METHODS: The Mantoux skin test (PPD) was offered to all potentially infected contacts. Participants were asked to answer a questionnaire.
RESULTS: Among 112 exposed employees, 92 (82.1%) were tested. At the 5 mm level, 65.2% of employees had positive tuberculin skin test (PPD). By controlling prior BCG and the degree of exposure, it showed a positive association between age and PPD (RC: 3.5; 95% CI: 1.25-10.03). When age and BCG were controlled, high exposure was statistically associated with PPD results (RC: 5.6; 95% CI: 1.25-24.68).
CONCLUSION: The observed prevalence rate is probably related to the fact that the index case was very infectious and had contact in an enclosed area over a long period of time before withdrawal from work.