PMID- 35378653 OWN - NLM STAT- MEDLINE DCOM- 20220825 LR - 20220825 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 29 IP - 39 DP - 2022 Aug TI - Main and added effects of heatwaves on hospitalizations for mental and behavioral disorders in a tropical megacity of Vietnam. PG - 59094-59103 LID - 10.1007/s11356-022-19898-1 [doi] AB - Vietnam is highly vulnerable to climate change-related extreme weather events such as heatwaves. This study assesses the association between heatwaves and hospitalizations due to mental and behavioral disorders (MBDs) in Ho Chi Minh City (HCMC). We collected daily MBD hospital admissions data at the HCMC Mental Health Hospital from 2017 to 2019. Heatwaves effects were characterized into the main effect (i.e., the intensity of temperature during heatwaves) and the added effect (i.e., the duration of heatwaves). Time series Poisson regression coupled with a distributed lag linear model (DLM) was used to quantify the 14-day lags effect of heatwaves. Confounders including long-term trend, seasonality, days of the week, holidays, and relative humidity were included in the model. Heatwaves increased all-cause MBD hospitalization by 62% (95%Cl, 36-93%) for the main effect and by 8% (95% Cl, - 3% to 19%) for the added effect. Noticeably, the group aged 18-60 years old was affected by the main effect of the heatwave, while the group aged 61 years and older was affected by the added effect of the heatwave. The effects of heatwaves differed among groups of MBD hospitalizations. The mental and behavioral disorder group due to psychoactive substance use was significantly affected by the main effect of heatwaves (RR:2.21; 95%Cl:1.55-3.15). The group of schizophrenia, schizotypal and delusional disorders were highly vulnerable towards both the main and the added effect of heatwaves with RR = 1.50 (95%CI, 1.20-1.86) and RR = 1.14 (95%CI, 1.01-1.30), respectively. CI - (c) 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Dang, Tran Ngoc AU - Dang TN AUID- ORCID: 0000-0002-5287-0265 AD - Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh, Vietnam. ngocdangytcc@gmail.com. FAU - Vy, Nguyen Thi Tuong AU - Vy NTT AD - Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh, Vietnam. FAU - Thuong, Do Thi Hoai AU - Thuong DTH AD - Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh, Vietnam. FAU - Phung, Dung AU - Phung D AD - Centre for Environment and Population Health, School of Medicine, Griffith University, Brisbane, Australia. FAU - Van Dung, Do AU - Van Dung D AD - Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh, Vietnam. FAU - Le An, Pham AU - Le An P AD - Family Medicine Center, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh, Vietnam. phamlean@ump.edu.vn. LA - eng PT - Journal Article DEP - 20220405 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 SB - IM MH - Adolescent MH - Adult MH - Cities MH - Hospitalization MH - *Hot Temperature MH - Humans MH - *Mental Disorders/epidemiology MH - Middle Aged MH - Vietnam/epidemiology MH - Young Adult OTO - NOTNLM OT - Added effect OT - Heatwaves OT - Hospitalization OT - Main effect OT - Mental health OT - Time-series study EDAT- 2022/04/06 06:00 MHDA- 2022/08/26 06:00 CRDT- 2022/04/05 05:06 PHST- 2021/08/20 00:00 [received] PHST- 2022/03/21 00:00 [accepted] PHST- 2022/04/06 06:00 [pubmed] PHST- 2022/08/26 06:00 [medline] PHST- 2022/04/05 05:06 [entrez] AID - 10.1007/s11356-022-19898-1 [pii] AID - 10.1007/s11356-022-19898-1 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2022 Aug;29(39):59094-59103. doi: 10.1007/s11356-022-19898-1. Epub 2022 Apr 5.