Seasonal correlation and causal analysis of the incidence of bronchial foreign bodies in children.

Objective: To explore the seasonal correlation of the incidence of bronchial foreign body.

Method: Conduct retrospective analysis on clinical data of 1819 cases with bronchial foreign bodies in our hospital within an eight-year period (from January 2005 to January 2012), with cases classified into 12 groups by admission time (calculated by the Gregorian calendar in months, from January to December) and 4 groups by the Gregorian calendar in seasons (spring from March to May, summer from June to August, autumn from September to November, and winter from December to February), and observe whether the number of inpatients indicates any monthly or seasonal correlation.

Results: The months of November and December indicated the highest number of inpatients, with 263 cases and 274 cases, which accounted for 12.