Thi Anh Thu Dang1, Darren Wraith2, Hilary Bambrick2, Nguyen Dung3, Thai Thanh Truc4, Shilu Tong5, Sue Naish2, Michael P Dunne6. 1. Institute for Community Health Research, University of Medicine and Pharmacy, Hue University, Hue City, Viet Nam; Faculty of Public Health, University of Medicine and Pharmacy, Hue University, Hue City, Viet Nam. Electronic address: dtathu@huemed-univ.edu.vn. 2. School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia. 3. People's Committee of Thua Thien Hue Province, Hue City, Thua Thien Hue, Viet Nam. 4. Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam; Department of Training and Scientific Research, University Medical Center, University of Medicine and Pharmacy at Ho Chi Minh City, Viet Nam. 5. School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia; Shanghai Children's Medical Centre, Shanghai Jiao Tong University, Shanghai, China; School of Public Health, Anhui Medical University, Hefei, China. 6. Institute for Community Health Research, University of Medicine and Pharmacy, Hue University, Hue City, Viet Nam; School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia.
Abstract
BACKGROUND: Vietnam is one of the countries most affected by climate change, but few studies have focused on the population health effects of climate variation. Extreme heatwaves and cold spells might exacerbate underlying chronic conditions and precipitate hospitalization or early death. This study examined the short-term effects of ambient temperature extremes on hospital admissions (HAs) due to acute myocardial infarction (AMI) between different climate zones in the Central Coast region of Vietnam. METHODS: Information from medical records of all 3328 cases of AMI HAs (with hospital records cross-checked by clinicians) was collected from three hospitals in the South-Central Coast region (tropical savanna climate) and North-Central Coast region (tropical monsoon climate) for the period 2008-2015. Meteorological data were obtained from the National Hydro-Meteorological and Environment Network Centre. We used distributed lag non-linear models to assess the association between daily average temperature and AMI HAs, accounting for long-term trend and other meteorological variables. RESULTS: We found a negative and significant association between AMI HAs and temperature in the North-Central Coast region while conversely there was a positive and significant association in the South-Central Coast region. In the North-Central Coast region, the risk of AMI HAs increased by 11% (Relative risk (RR): 1.11, 95% CI: 0.91-1.35, p > 0.05) at moderately low temperatures (10th percentile of temperature range - 18.5 °C) and increased by 25% (RR: 1.25, 95% CI: 1.02-1.55, p < 0.05) at extremely low temperatures (5th percentile of temperature range - 16.8 °C). In the South-Central Coast region, the risk of AMI HAs increased by 18% (RR: 1.18, 95% CI: 0.95-1.47, p > 0.05) and 36% (RR: 1.36, 95% CI: 1.06-1.73, p < 0.05) at moderately high temperatures (90th percentile of temperature range -29.5 °C) and extreme high temperatures (95th percentile of temperature range - 29.9 °C), respectively. CONCLUSIONS: Risk of AMI is associated with extremely high and extremely low temperature in Vietnam and the risk varies in relation to the local regional climate. Public health preparedness and multi-level interventions should attempt to reduce people's exposure in periods of disadvantageous temperatures.
BACKGROUND: Vietnam is one of the countries most affected by climate change, but few studies have focused on the population health effects of climate variation. Extreme heatwaves and cold spells might exacerbate underlying chronic conditions and precipitate hospitalization or early death. This study examined the short-term effects of ambient temperature extremes on hospital admissions (HAs) due to acute myocardial infarction (AMI) between different climate zones in the Central Coast region of Vietnam. METHODS: Information from medical records of all 3328 cases of AMI HAs (with hospital records cross-checked by clinicians) was collected from three hospitals in the South-Central Coast region (tropical savanna climate) and North-Central Coast region (tropical monsoon climate) for the period 2008-2015. Meteorological data were obtained from the National Hydro-Meteorological and Environment Network Centre. We used distributed lag non-linear models to assess the association between daily average temperature and AMI HAs, accounting for long-term trend and other meteorological variables. RESULTS: We found a negative and significant association between AMI HAs and temperature in the North-Central Coast region while conversely there was a positive and significant association in the South-Central Coast region. In the North-Central Coast region, the risk of AMI HAs increased by 11% (Relative risk (RR): 1.11, 95% CI: 0.91-1.35, p > 0.05) at moderately low temperatures (10th percentile of temperature range - 18.5 °C) and increased by 25% (RR: 1.25, 95% CI: 1.02-1.55, p < 0.05) at extremely low temperatures (5th percentile of temperature range - 16.8 °C). In the South-Central Coast region, the risk of AMI HAs increased by 18% (RR: 1.18, 95% CI: 0.95-1.47, p > 0.05) and 36% (RR: 1.36, 95% CI: 1.06-1.73, p < 0.05) at moderately high temperatures (90th percentile of temperature range -29.5 °C) and extreme high temperatures (95th percentile of temperature range - 29.9 °C), respectively. CONCLUSIONS: Risk of AMI is associated with extremely high and extremely low temperature in Vietnam and the risk varies in relation to the local regional climate. Public health preparedness and multi-level interventions should attempt to reduce people's exposure in periods of disadvantageous temperatures.
Authors: Geraldine P Y Koo; Huili Zheng; Pin Pin Pek; Fintan Hughes; Shir Lynn Lim; Jun Wei Yeo; Marcus E H Ong; Andrew F W Ho Journal: Int J Environ Res Public Health Date: 2022-07-11 Impact factor: 4.614
Authors: Quynh Anh Tran; Vu Thuy Huong Le; Van Toan Ngo; Thi Hoan Le; Dung T Phung; Jesse D Berman; Huong Lien Thi Nguyen Journal: Front Public Health Date: 2022-07-19
Authors: Yang Shen; Xudong Zhang; Cai Chen; Qianqian Lin; Xiyuan Li; Wenxiu Qu; Xuejian Liu; Li Zhao; Shijie Chang Journal: Environ Sci Pollut Res Int Date: 2021-01-06 Impact factor: 5.190