TY - JOUR
T1 - Life-time summer heat exposure and lung function in young adults
T2 - A retrospective cohort study in Shandong China
AU - Miao, Jiaming
AU - Feng, Shurong
AU - Wang, Minghao
AU - Jiang, Ning
AU - Yu, Pei
AU - Wu, Yao
AU - Ye, Tingting
AU - Wen, Bo
AU - Lu, Peng
AU - Li, Shanshan
AU - Guo, Yuming
N1 - Funding Information:
The study was supported by Taishan Scholar Program.
Funding Information:
The authors are grateful to all students of Binzhou Medical University who participated in this study. Shanshan Li was supported by an Early Career Fellowship of the Australian National Health and Medical Research Council (APP1109193); Yuming Guo was supported by a career development fellowship of the Australian National Health and Medical Research Council (APP1163693); Peng Lu was supported by Shandong Young Creative Talents Cultivation Project (2021). Not required. The study was approved by Binzhou Medical University ethics committee.
Publisher Copyright:
© 2022 The Authors
PY - 2022/2
Y1 - 2022/2
N2 - Background: The health impact of short-term heat exposure is well documented. However, limited studies explored the association between life-time summer heat exposure and lung function. Objective: To examine the association between life-time summer heat exposure and lung function among young adults. Methods: We conducted a retrospective cohort study among 1928 college students in Shandong, China from September 4, 2020 to November 15, 2020. Life-time summer heat exposure for participants were estimated based on the nearest station meteorological data after the participant's birth date and divided by their learning phases. Lung function indicators included forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1). A multiple linear regression model was conducted to examine the associations between summer heat exposure and lung function. Stratification analysis by cooling facilities and respiratory diseases history were also conducted. Results: The study subjects had a slight majority of women (58.8%), age 19.2 ± 0.6 years. Each 1 °C increase in life-time summer mean temperature was associated with 1.07% [95% confidence interval (CI): −1.95–0.18%] decrease in FVC and 0.88% (95 %CI: −1.71, −0.05%) decrease in FEV1. Participants with respiratory diseases and non-cooling facility users were more susceptible to summer heat exposure. The usage of fan and air condition could effectively reduce the deleterious heat effects on lung function. Conclusion: Life-time summer heat exposure is significantly associated with the reduction of lung function in young adults. Cooling facilities are necessary for pre-school children to reduce heat effects. Fan and air-condition are effective cooling facilities, especially for people with respiratory diseases.
AB - Background: The health impact of short-term heat exposure is well documented. However, limited studies explored the association between life-time summer heat exposure and lung function. Objective: To examine the association between life-time summer heat exposure and lung function among young adults. Methods: We conducted a retrospective cohort study among 1928 college students in Shandong, China from September 4, 2020 to November 15, 2020. Life-time summer heat exposure for participants were estimated based on the nearest station meteorological data after the participant's birth date and divided by their learning phases. Lung function indicators included forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1). A multiple linear regression model was conducted to examine the associations between summer heat exposure and lung function. Stratification analysis by cooling facilities and respiratory diseases history were also conducted. Results: The study subjects had a slight majority of women (58.8%), age 19.2 ± 0.6 years. Each 1 °C increase in life-time summer mean temperature was associated with 1.07% [95% confidence interval (CI): −1.95–0.18%] decrease in FVC and 0.88% (95 %CI: −1.71, −0.05%) decrease in FEV1. Participants with respiratory diseases and non-cooling facility users were more susceptible to summer heat exposure. The usage of fan and air condition could effectively reduce the deleterious heat effects on lung function. Conclusion: Life-time summer heat exposure is significantly associated with the reduction of lung function in young adults. Cooling facilities are necessary for pre-school children to reduce heat effects. Fan and air-condition are effective cooling facilities, especially for people with respiratory diseases.
KW - Heat exposure
KW - Life-time exposure
KW - Lung function
KW - Summer
KW - Temperature
UR - http://www.scopus.com/inward/record.url?scp=85122261217&partnerID=8YFLogxK
U2 - 10.1016/j.envint.2021.107058
DO - 10.1016/j.envint.2021.107058
M3 - Article
C2 - 34999345
AN - SCOPUS:85122261217
SN - 0160-4120
VL - 160
JO - Environment International
JF - Environment International
M1 - 107058
ER -