Abstract: Objective To explore the relationship between cerebral infarction and meteorological factors in Tianjin. Methods A total of 15 401 hospitalized cases diagnosed with cerebral infarction in the First Affiliated Hospital of Tianjin University of Chinese Medicine from January 2019 to Decmber 2020 were retrospectively collected, and collected with concurrent meteorological data in Tianjin. At the nodes of the 24 solar terms, patients were grouped according to the admission time, the distribution of cerebral infarction in the 24 solar terms was analyzed, and the correlation between the high incidence period of cerebral infarction in the 24 solar terms and meteorological factors was analyzed. To explore the relationship between meteorological changes and cerebral infarction admission. Results Spring admission peak period (Rain Water-Lesser Fullness of Grain), admission stable period (Grain in Ear-the Autumn Equinox), autumn-admission peak period (Cold Dew-the Beginning of Winter), decreasing period of admissions (Lesser Snow-the Beginning of Spring). The results of the univariate analysis showed that the poor daily average air temperature and the daily air temperature had an influence on the admission of cerebral infarction, due to the correlation among the various meteorological factors. Conclusion Rain Water-Lesser Fullness of Grain, Cold Dew-the Beginning of Winter is the peak of cerebral infarction admission, Lesser Snow-the Beginning of Spring is the trough of cerebral infarction admission, and the number of admissions in Grain in Ear-the Autumn Equinox is relatively balanced. Temperature Poor temperature and daily average temperature are the main meteorological factors of cerebral infarction admission, and the male population is more sensitive.

Key words: cerebral infarction, 24 solar terms, meteorological factors