ABSTRACT
Objective To understand the patterns and epidemiological characteristics of severe pneumonia in Shapingba District, Chongqing area, and to provide reference for prevention and treatment of severe pneumonia. Methods The clinical data of 174 patients with severe pneumonia admitted to our hospital from January 2018 to December 2020 was retrospectively analyzed, including general demographic data, pathogenic test results, deaths, etc., and statistical analysis was performed. Results Fifty-four cases (30.5%) of 174 patients with severe pneumonia were positive for influenza virus, including 28 cases of new A H1N1, 11 cases of human H7N9, 9 cases of seasonal H3, and 6 cases of influenza B.In 174 cases of severe pneumonia patients,there were 105 males (60.34%) and 69 females (39.66%) withthe onset time: 63 cases (36.21%) from March to May, 5 cases (2.87%) from June to August, and 22 cases from September to November (12.64%), 84 cases (48.28%) from December to February.Eighty-two of 174 patients(47.13%) with severe pneumonia died. Logistic regression analysis showed that older age, more than 3 organs involved, COPD, septic shock, and influenza virus infection were risk factors for severe pneumonia death. Conclusion Severe pneumonia in Shapingba, Chongqing area is dominated by influenza A virus infection, which usually occurs in winter and spring with a high mortality rate. It is necessary to conduct disease prevention and control for high-risk groups.