The association between temperature and cause-specific mortality in the Klang Valley, Malaysia

Yatim, Ahmad Norazhar Mohd; Latif, Mohd Talib; Sofwan, Nurzawani Md; Ahamad, Fatimah; Khan, Firoz; Mahiyuddin, Wan Rozita Wan; Sahani, Maneesh

doi:10.1007/s11356-021-14962-8

Cited by 15 publications

(7 citation statements)

References 63 publications

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“…Our study confirms that older people over 65 years old are more susceptible to ambient temperature, especially hot temperatures. This is consistent with the results of the meta-analysis and several other studies [ 26 , 38 , 41 , 62 ]. There are two possible explanations for this result.…”

Section: Discussionsupporting

confidence: 93%

Lag effect of ambient temperature on respiratory emergency department visits in Beijing: a time series and pooled analysis

Li,

Zhang,

Tian

et al. 2024

BMC Public Health

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Background Although the association between ambient temperature and mortality of respiratory diseases was numerously documented, the association between various ambient temperature levels and respiratory emergency department (ED) visits has not been well studied. A recent investigation of the association between respiratory ED visits and various levels of ambient temperature was conducted in Beijing, China. Methods Daily meteorological data, air pollution data, and respiratory ED visits data from 2017 to 2018 were collected in Beijing. The relationship between ambient temperature and respiratory ED visits was explored using a distributed lagged nonlinear model (DLNM). Then we performed subgroup analysis based on age and gender. Finally, meta-analysis was utilized to aggregate the total influence of ambient temperature on respiratory ED visits across China. Results The single-day lag risk for extreme cold peaked at a relative risk (RR) of 1.048 [95% confidence interval (CI): 1.009, 1.088] at a lag of 21 days, with a long lag effect. As for the single-day lag risk for extreme hot, a short lag effect was shown at a lag of 7 days with an RR of 1.076 (95% CI: 1.038, 1.114). The cumulative lagged effects of both hot and cold effects peaked at lag 0–21 days, with a cumulative risk of the onset of 3.690 (95% CI: 2.133, 6.382) and 1.641 (95% CI: 1.284, 2.098), respectively, with stronger impact on the hot. Additionally, the elderly were more sensitive to ambient temperature. The males were more susceptible to hot weather than the females. A longer cold temperature lag effect was found in females. Compared with the meta-analysis, a pooled effect of ambient temperature was consistent in general. In the subgroup analysis, a significant difference was found by gender. Conclusions Temperature level, age-specific, and gender-specific effects between ambient temperature and the number of ED visits provide information on early warning measures for the prevention and control of respiratory diseases.

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Section: Discussionsupporting

confidence: 93%

Lag effect of ambient temperature on respiratory emergency department visits in Beijing: a time series and pooled analysis

Li,

Zhang,

Tian

et al. 2024

BMC Public Health

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“…One possibility is that when the sun shines outside, people are more likely to break the "staying indoors" rule and thus, contract the virus (Menebo, 2020;Hossain et al, 2021). High mobility, high population density and poor housing conditions are all that are likely to have a role in the spread of COVID-19, especially in large cities, regardless of the weather (Azuma et al, 2020;Naing et al, 2020;Rosario et al, 2020;Yatim et al, 2021;Aune et al, 2021). Aerosols and microbiological bioaerosols (fungi, bacteria, viruses) may be accumulated and dispersed by precipitation, suggesting that viruses do not have a long residence time in ambient air and cannot propagate further (Hossain et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Effect of Rainfall on Covid-19 Transmission in Terengganu, Malaysia

NAWI¹,

Dom²,

Dapari³

et al. 2022

JSSM

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One of the variables leading to the global spread of COVID-19 cases is the weather, which includes temperature and air quality. In this study, an investigation of the association between precipitation and COVID-19 cases was conducted to provide useful information on the possibility of this climate factor (precipitation) on the progression of COVID-19 cases for an appropriate management strategy. Secondary COVID-19 and rainfall data obtained from the Ministry of Health and the Meteorological Department in Malaysia were used for the study. The collected data were subjected to Pearson correlation analysis. The results of this study showed that both rainy days and rainfall amount were insignificant to COVID-19 cases, indicating that rainfall amount was not associated with COVID-19 transmission in Terengganu, Malaysia. Thus, this discovery could be used to inform individual and COVID-19 supervisors and the government as it prepares for the new weather season.

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“…40 Substantial evidence is also available from China 12 ; at the same time, only a few studies were conducted in lowermiddle-income countries (LMICs), which include a large part of Asia, Africa, Latin America, and some parts of East Europe. 15,[41][42][43][44] Many of the LMICs have seen a remarkable series of record-breaking heat waves, which are not unexpected as per the latest Intergovernmental Panel on Climate Change Assessment Report, showing that the frequency and intensity of heat waves have increased. 5 The health burden is immense since many LMICs are not better adapted to such high temperatures/heat waves and have fewer resources and infrastructure to cope with heat compared with HICs.…”

Section: Heat Wave Definition (High-intensity Heat Wave)mentioning

confidence: 99%

Heat and Cardiovascular Mortality: An Epidemiological Perspective

Singh,

Areal,

Breitner

et al. 2024

Circulation Research

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As global temperatures rise, extreme heat events are projected to become more frequent and intense. Extreme heat causes a wide range of health effects, including an overall increase in morbidity and mortality. It is important to note that while there is sufficient epidemiological evidence for heat-related increases in all-cause mortality, evidence on the association between heat and cause-specific deaths such as cardiovascular disease (CVD) mortality (and its more specific causes) is limited, with inconsistent findings. Existing systematic reviews and meta-analyses of epidemiological studies on heat and CVD mortality have summarized the available evidence. However, the target audience of such reviews is mainly limited to the specific field of environmental epidemiology. This overarching perspective aims to provide health professionals with a comprehensive overview of recent epidemiological evidence of how extreme heat is associated with CVD mortality. The rationale behind this broad perspective is that a better understanding of the effect of extreme heat on CVD mortality will help CVD health professionals optimize their plans to adapt to the changes brought about by climate change and heat events. To policymakers, this perspective would help formulate targeted mitigation, strengthen early warning systems, and develop better adaptation strategies. Despite the heterogeneity in evidence worldwide, due in part to different climatic conditions and population dynamics, there is a clear link between heat and CVD mortality. The risk has often been found to be higher in vulnerable subgroups, including older people, people with preexisting conditions, and the socioeconomically deprived. This perspective also highlights the lack of evidence from low- and middle-income countries and focuses on cause-specific CVD deaths. In addition, the perspective highlights the temporal changes in heat-related CVD deaths as well as the interactive effect of heat with other environmental factors and the potential biological pathways. Importantly, these various aspects of epidemiological studies have never been fully investigated and, therefore, the true extent of the impact of heat on CVD deaths remains largely unknown. Furthermore, this perspective also highlights the research gaps in epidemiological studies and the potential solutions to generate more robust evidence on the future consequences of heat on CVD deaths.

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The association between temperature and cause-specific mortality in the Klang Valley, Malaysia

Cited by 15 publications

References 63 publications

Lag effect of ambient temperature on respiratory emergency department visits in Beijing: a time series and pooled analysis

Lag effect of ambient temperature on respiratory emergency department visits in Beijing: a time series and pooled analysis

Evaluation of the Effect of Rainfall on Covid-19 Transmission in Terengganu, Malaysia

Heat and Cardiovascular Mortality: An Epidemiological Perspective

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