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- Title
Analysis of influence factors in the time interval from onset to diagnosis in the early stage of COVID-19 epidemic in Guangzhou.
- Authors
LI Hai-lin; LUO Lei; JING Qin-long; ZHENG Mu-rui
- Abstract
Objective To investigate the time interval from the onset to the diagnosis of the domestic cases of COVID-19 in Guangzhou, and we analyze the causes of cases with long time intervals. Methods We collected epidemiological data of all the confirmed domestic cases in the early stage of COVID-19 in Guangzhou. Descriptive analysis was used to the time interval from the onset to the diagnosis. Results A total of 347 confirmed cases of COVID-19 in Guangzhou, as of March 14, 2020. After January 24th, the time interval from the onset to diagnosis, the mean was (4.4±0.2) days and the median was 4 (2.0,6.0) days, was significantly lower than before, the mean was (8.3±1.7) days and the median was 8 (3.0, 13.0) days. The mean (4.1± 0.3) days and median 3 (1.0, 6.0) days in the time interval in the active prevention and control discovery mode were smaller than that in the self-seeking medication mode, the mean was (5.9±0.3) days and the median was 6 (3.0,8.0) days, the difference in the interval from onset to diagnosis was statistically significant (P<0.01). The median 6(2.0,9.0) days was largest in 50-<60 age group, and the mean (7.3±2.0) days was the largest in the age group over 80. The only symptomatic treatment in first visit, self medication, and the false negative of the laboratory nucleic acid testing results leaded to longer time intervals. Conclusion The time interval from onset to diagnosis was correlated with the level of prevention and control. The active prevention and control mode had contributed to detect cases quickly. Public health education should be strengthened especially for the elderly. And we should strengthen the responsibility system of the first-visited medical institutions. The diagnosis needed to be combined with symptoms, epidemiological investigation and etiological examination. The use of laboratory results should be combined with sampling technology specification, sampling times and sampling locations.
- Publication
China Tropical Medicine, 2021, Vol 21, Issue 4, p354
- ISSN
1009-9727
- Publication type
Article
- DOI
10.13604/j.cnki.46-1064/r.2021.04.11