M-Y Xie1, H Ni2, D-S Zhao1, J Cheng1, L-Y Wen1, K-S Li1, H-H Yang1, S-S Wang1, H Zhang1, X Wang1, H Su3. 1. Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China. 2. Anhui Province Children's Hospital, Hefei, Anhui 230051, China. 3. Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China. Electronic address: suhong5151@sina.com.
Abstract
OBJECTIVES: To determine the relationship between diurnal temperature range (DTR) and outpatient visits for childhood acute bronchitis (AB) in Hefei, China, to analyze whether DTR effect was delayed, and to explore the susceptible populations. STUDY DESIGN: An ecological study. METHODS: A Poisson generalized linear regression model combined with a distributed lag non-linear model was used to analyze the relationship between DTR and childhood AB from Hefei, China during 2010-2013, after adjusting for long-term trend and seasonality, mean temperature and relative humidity. RESULTS: An adverse effect of DTR on childhood AB was observed, and the impact of DTR was greatest at three days lag, with a 1.0% (95% confidence interval = 0.5-1.6%) increase of AB cases per 1 °C increment of DTR. Female children and children aged 0-4 years appeared to be more vulnerable to DTR effect than other children. CONCLUSIONS: Our study suggests that large DTR may increase the incidence of childhood AB in Hefei, particularly for those who are female and young. Caregivers and health practitioners should be made aware of the potential threat posed by large DTR.
OBJECTIVES: To determine the relationship between diurnal temperature range (DTR) and outpatient visits for childhood acute bronchitis (AB) in Hefei, China, to analyze whether DTR effect was delayed, and to explore the susceptible populations. STUDY DESIGN: An ecological study. METHODS: A Poisson generalized linear regression model combined with a distributed lag non-linear model was used to analyze the relationship between DTR and childhood AB from Hefei, China during 2010-2013, after adjusting for long-term trend and seasonality, mean temperature and relative humidity. RESULTS: An adverse effect of DTR on childhood AB was observed, and the impact of DTR was greatest at three days lag, with a 1.0% (95% confidence interval = 0.5-1.6%) increase of AB cases per 1 °C increment of DTR. Female children and children aged 0-4 years appeared to be more vulnerable to DTR effect than other children. CONCLUSIONS: Our study suggests that large DTR may increase the incidence of childhood AB in Hefei, particularly for those who are female and young. Caregivers and health practitioners should be made aware of the potential threat posed by large DTR.
Authors: Maria Elisa Di Cicco; Giuliana Ferrante; Doriana Amato; Antonino Capizzi; Carlo De Pieri; Valentina Agnese Ferraro; Maria Furno; Valentina Tranchino; Stefania La Grutta Journal: Int J Environ Res Public Health Date: 2020-07-24 Impact factor: 3.390