• Xiao Bing Tang, Dong Yan Hu, Xian Qing Mu, and Yu Zuo Bai.
• Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.
• Am J Emerg Med. 2021 Apr 1; 42: 211-216.

ObjectiveThe aim of this study was to determine whether an association existed between intussusception and air temperature.MethodsA retrospective study was performed between March 2006 and February 2016 to determine the relationship between pediatric primary intussusception (PPI) and air temperature. Information from hospital records of 5922 cases of PPI and Mean daily temperatures of Shenyang were obtained. Pearson correlation analysis was used to examine the association between monthly PPI cases and monthly mean temperature. Factorial analysis-of-variance was used to examine differences in the numbers of seasonal PPI cases during different seasons.ResultsMonthly PPI cases fluctuated throughout the year, with a peak in June, and a trough in February. Pearson correlation analysis showed that monthly PPI cases was associated with the monthly mean temperature (p < 0.01). Factorial analysis-of-variance showed there was significant difference in the numbers of seasonal PPI cases during different seasons. Multiple comparison showed a significant difference in seasonal PPI cases between spring and summer, spring and winter, summer and autumn, summer and winter, autumn and winter (p < 0.01).ConclusionsMonthly PPI cases were positively associated with monthly mean temperature in Shenyang. The incidence of intussusception shows a seasonal trend, with a peak in summer (May to July).Copyright © 2020. Published by Elsevier Inc.

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