Yuwei Yang1, Haojie Zhong1, Tie Song1, Jianfeng He1, Lan Guo2, Xiaohua Tan1, Guofeng Huang1, Min Kang3. 1. Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, People's Republic of China. 2. Department of Medical statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China. 3. Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, People's Republic of China. Electronic address: kangmin@yeah.net.
Abstract
OBJECTIVE: To describe the demographics and clinical characteristics of patients with A (H7N9) infection, to test the differences in the distribution of demographics and clinical characteristics by clinical severity, and to explore potential factors associated with clinical severity. METHODS: This retrospective study was conducted to collect epidemiological and clinical information regarding the confirmed cases in Guangdong through field investigation and review of medical records. RESULTS: Of the 256 cases, 100 (39.0%) patients died, and 168 (65.6%) patients were admitted to ICUs. The male-to-female ratio was approximately 2.0:1, and the median age was 56 years (range, 1 to 88). Among the 215 patients accepting oseltamivir treatment, the median time from the onset of illness to oseltamivir treatment was 5days (range, 0 to 16); 35 patients received zanamivir treatment after a median of 8days (range, 0 to 23). The univariable logistic regression models demonstrated that time from the onset of illness to oseltamivir treatment (OR=1.10, 95% CI=1.01-1.10) and zanamivir treatment (OR=1.05, 95% CI=1.02-1.07) were associated with the death of patients. CONCLUSIONS: Preventive measures should focus on high-risk populations, such as the elderly and the groups with high frequency exposure to live poultry. Earlier oseltamivir and zanamivir treatment were recommended.
OBJECTIVE: To describe the demographics and clinical characteristics of patients with A (H7N9) infection, to test the differences in the distribution of demographics and clinical characteristics by clinical severity, and to explore potential factors associated with clinical severity. METHODS: This retrospective study was conducted to collect epidemiological and clinical information regarding the confirmed cases in Guangdong through field investigation and review of medical records. RESULTS: Of the 256 cases, 100 (39.0%) patients died, and 168 (65.6%) patients were admitted to ICUs. The male-to-female ratio was approximately 2.0:1, and the median age was 56 years (range, 1 to 88). Among the 215 patients accepting oseltamivir treatment, the median time from the onset of illness to oseltamivir treatment was 5days (range, 0 to 16); 35 patients received zanamivir treatment after a median of 8days (range, 0 to 23). The univariable logistic regression models demonstrated that time from the onset of illness to oseltamivir treatment (OR=1.10, 95% CI=1.01-1.10) and zanamivir treatment (OR=1.05, 95% CI=1.02-1.07) were associated with the death of patients. CONCLUSIONS: Preventive measures should focus on high-risk populations, such as the elderly and the groups with high frequency exposure to live poultry. Earlier oseltamivir and zanamivir treatment were recommended.
Authors: Patricia Winokur; Hana M El Sahly; Mark J Mulligan; Sharon E Frey; Richard Rupp; Evan J Anderson; Kathryn M Edwards; David I Bernstein; Kenneth Schmader; Lisa A Jackson; Wilbur H Chen; Heather Hill; Abigail Bellamy Journal: Vaccine Date: 2021-01-21 Impact factor: 3.641