关键词: 结核，肺/流行病学, 结核，肺/预防和控制, 抽样研究, 江苏省

Abstract: ObjectiveTo realize the epidemical situation of pulmonary tuberculosis (PTB) in Jiangsu province and analyze the tendency of the epidemic variation. MethodsWith stratified cluster sampling method, a total of 40 investigation points was sampled and the sampling proportion was 1∶1203. All population in the investigation points was registered. Chest X-ray was applied to all population ≥15 years old without PTB symptom, PPD test was carried out among the children younger than 15 years old. Chest X-ray, 3 sputum direct smears and 2 cultural examinations were applied to all people with PTB symptom and all people with abnormal result of chest X-ray and PPD test. ResultsThe prevalence rate of active TB, smear positive and bacteriological confirmed PTB were 282.47/100000, 58.11/100000 and 79.09/100000 respectively. The prevalence rate of smear positive TB had a 54.3% declining compared with the rate of 1990. The mortality rate of PTB was 2.2/100000, and had an 85.4% declining compared with 1990. In the age groups of 30-year and above, male’s prevalence rate was higher than female’s and the difference expanded gradually with the age increased. The infection rates of tuberculosis were 5.3% in rural area and 1.5% in urban region. In the main age groups, the prevalence rate of migrant population was higher obviously than local resident’s. The proportion of the active PTB cases in all active cases was 55.4%, of which 99% received treatment, the proportion of active PTB cases treated under DOT and management was 88.5%. 90.1% non-consultation cases with symptoms were middle and old age people. ConclusionsThrough the implementation of The National Tuberculosis Control Program (2001—2010) and various effective measures, smear positive prevalence rate and mortality rate had declined sharply compared with the rates of 1990. But the tuberculosis epidemical situation is still serious, especially in aged people, which had a high prevalence rate and a low detection rate. With the rapid increasing of migrant population, the sampling method and implementation should be considered sufficiently in national survey in future. In addition, the diagnosis of smear-negative cases, should be further confirmed during follow-up visit.

Key words: pulmonary tuberculosis/epidemiology, pulmonary/prevention and control, sampling studies, Jiangsu province