title: [A three-year retrospective cohort study on pulmonary tuberculosis in Shanghai. Shanghai Pulmonary Tuberculosis Epidemiological Research Group].
abstract: Based upon the study population selected for a cross-sectional survey in 1990, a three-year retrospective cohort study on pulmonary tuberculosis was carried out in Shanghai. The cases of tuberculosis from 1987 to 1990 were determined according to home-visit inquiry combined with medical history collection, physical examination and routine notification material. The overall incidences of active, bacillus positive and smear positive for the whole city, higher in male than in female, were 54.5/100,000, 21.5/100,000 and 19.4/100,000, respectively. The incidence tended to rise with the increase of age, and, there were peaks among age group 30 and 60. The initial and relapse incidences were 48.7/100,000 and 5.8/100,000, and most of the relapse cases were those aged above 45. The undetection rates of active, bacillus positive and smear positive were 23.1%, 36.6% and 37.8%, respectively. The registration rate of detected cases was above 97%. This study indicates that it is applicable to perform retrospective cohort study on tuberculosis while conducting cross-sectional survey and the data can be used to evaluate the epidemiologic situation, control effect and the quality of notification.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D015331:Cohort Studies; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012737:Sex Factors; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology*