[Case fatality rate in patients with pneumoconiosis in China: a meta-analysis].

ABSTRACT

OBJECTIVE: To evaluate the fatality rate of pneumoconiosis as well as the contributory factors in China in order to provide a foundation for prolonging the patients' lives. METHODS: China National Knowledge Infrastructure (CNKI) and Wanfang Databases were searched to collect observational studies published between Jan, 2000 and Oct, 2013 on pneumoconiosis case fatality rate. Articles meeting the inclusion criteria were reviewed systematically, and analyzed by using Stata/SE 12.0, according to stage and type of pneumoconiosis and whether complicated with tuberculosis. RESULTS: 41 papers were included for meta-analysis. The pooled total case fatality rate of pneumoconiosis was 31.2%. The pooled case fatality rate of pneumoconiosis patients of stage 1, 2 and 3 were 25.4%, 39.8%and 57.5%, respectively. The pooled case fatality rate of patients with silicosis, coal worker's pneumoconiosis, foundry worker's pneumoconiosis, asbestosis and cement pneumoconiosis were 35.8%, 32.4%, 24.7%, 35.1%and 5.5%, respectively. The complication with tuberculosis was a risk factor for the death of pneumoconiosis patients and the pooled RR was 1.82 (95%CI 1.59∼2.08). CONCLUSION: There are significant differences in the case fatality rate of pneumoconiosis among different stages and different types of pneumoconiosis and whether complicated with tuberculosis.