Bài viết thực hiện mục tiêu Mô tả tương quan tác động giữa các yếu tố thời tiết và số ca bệnh nhập viện do bệnh viêm phổi ở trẻ em tại Nghệ An. | VNU Journal of Science Medical and Pharmaceutical Sciences Vol. 36 No. 3 2020 109-115 Original Article The Impact of Weather on Hospitalization due to Pneumonia Among Children in Nghe An from 2015 to 2019 Nguyen Chi Sy1 Le Tu Hoang2 Nguyen Thi Trang Nhung2 Vu Thi Hoang Lan2 Tran Minh Dien3 1 Nghe An Maternity-Pediatric Hospital 19 Ton That Tung Vinh Nghe An Vietnam 2 Hanoi University of Public Health No 1A Duc Thang North Tu Liem Hanoi Vietnam 3 National Children s Hospital 879 La Thanh Dong Da Hanoi Vietnam Received 18 September 2020 Revised 21 September 2020 Accepted 25 September 2020 Abstract This paper studies the impact of weather on the number of under 15-year-old children hospitalized for pneumonia at Nghe An Pediatric Hospital using time series analysis of the data collected from 2015 to 2019. The study was carried out on 45 466 children most of whom were under 16 years old. The study results show that there was a statistically significant inverse correlation between mean daily temperature and children s hospitalization for pneumonia while humidity was positively correlated. Specifically when the average daily temperature increased by 1 degree Celsius the risk of hospitalization for pneumonia on the same day decreased by 1 95 CI - whereas when the humidity increased the risk of hospitalization increased by 95 CI - on the day of hospitalization risk increased by 95 CI - one day before hospitalization and risk increased by 95 CI - two days before hospitalization. The results suggest that children are highly sensitive to weather factors including temperature and humidity therefore it is necessary to take measures to protect children against changing weather. Keywords Weather pneumonia children effect. ____ Corresponding author E-mail address dientm@ https 2588-1132 109 110 . Sy et al. VNU Journal of Science Medical and Pharmaceutical Sciences Vol. 36 No. 3 2020 .