Daily diurnal temperature range associated with outpatient visits of acute lower respiratory infection in children: A time-series study in Guangzhou, China

Zhang, Zhigang; Xu, Debo; Chen, Jiamin; Meng, Qiong; Liang, Zhenyu; Zhang, Xiao

doi:10.3389/fpubh.2022.951590

Cited by 3 publications

(3 citation statements)

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“…First, we observed that temperature variation increased the risk of pediatric pneumonia events. A report demonstrated that a 1°C increase in temperature variation induced by climate change increased the risk of pediatric pneumonia events by 3.19-fold (95% CI: 1.85-4.54; p < 0.05) (22). We also evaluated the effects of temperature variation on pediatric pneumonia hospital admissions and observed that temperature variations are an important risk factor for pediatric pneumonia hospital admissions.…”

Section: Discussionmentioning

confidence: 91%

“…Also, studies in tropical climate zones have observed that temperature variation is a critical risk factor in children for pneumonia outpatient visits (17,18). Several studies in humid subtropical climate zones have also concluded that there are significant associations between 1°C temperature variation and pneumonia outpatient visits in children (19)(20)(21)(22). These reports highlights the link between temperature variation and increased risk of pediatric pneumonia events.…”

Section: Introductionmentioning

confidence: 79%

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Extreme temperatures increase the risk of pediatric pneumonia: a systematic review and meta-analysis

Makrufardi,

Triasih,

Nurnaningsih

et al. 2024

Front. Pediatr.

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IntroductionThe impact of climate change on ambient temperatures threatens to worsen pediatric pneumonia-related outcomes considerably. This study examined the associations of temperature variation and extreme temperature with pediatric pneumonia-related events using a meta-analysis.MethodsWe systematically searched PubMed, Medline, Embase, and Web of Science databases for relevant literature, and the quality of evidence was assessed. Fixed and random-effects meta-analyses were performed to calculate the pooled relative risks (RRs) of the associations with pneumonia-related events.ResultsWe observed that a 1°C temperature variation increased the RR of pneumonia events by 1.06-fold (95% confidence interval (CI): 1.03–1.10). A 1°C temperature variation increased the RR by 1.10-fold of the pediatric pneumonia hospital admissions (95% CI: 1.00–1.21) and 1.06-fold of the pediatric pneumonia emergency department visits (95% CI: 1.01-1.10). Extreme cold increased the RR by 1.25-fold of the pediatric pneumonia events (95% CI: 1.07–1.45). A 1°C temperature variation increased the RR of pneumonia events in children by 1.19-fold (95% CI: 1.08–1.32), girls by 1.03-fold (95% CI: 1.02–1.05), and in temperate climate zones by 1.07-fold (95% CI: 1.03–1.11). Moreover, an increase in extreme cold increased the RR of pneumonia events in children by 2.43-fold (95% CI: 1.72–3.43), girls by 1.96-fold (95% CI: 1.29–2.98) and in temperate climate zones by 2.76-fold (95% CI: 1.71–4.47).ConclusionOur study demonstrated that pediatric pneumonia events are more prevalent among children, particularly girls, and individuals residing in temperate climate zones. Climate change represents an emergent public health threat, affecting pediatric pneumonia treatment and prevention..Systematic Review RegistrationPROSPERO (CRD42022378610).

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Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 79%

Extreme temperatures increase the risk of pediatric pneumonia: a systematic review and meta-analysis

Makrufardi,

Triasih,

Nurnaningsih

et al. 2024

Front. Pediatr.

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“…motivation for the daily classification are as follows:(1) the heat stress level generally increases progressively from the FullC, through PartC, NoStr and PartH (or the rare WideFluc condition), to the FullH condition, which could be used to interpret thermal stress shifts due to climate change; (2) different thermal stress types, except for the NoStr condition, are linked to different human health problems (e.g., FullH and PartH conditions can cause heat cramps, heat exhaustion and heat stroke; FullC and PartC conditions can lead to hypothermia, frostbite and trench foot; and WideFluc conditions are often associated with increased mortality from cardiovascular diseases and respiratory infections[62][63][64][65] ); (3) there is a need to implement targeted adaption measures to cope with different types of daily thermal stress (e.g., staying indoor and running an air conditioner in FullH days, working for only a few hours to avoid heat stress in PartH days, wearing more layers of clothes in PartC weather, and running a space heater to keep warm in an FullC environment).…”

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confidence: 99%

Stronger diversification of human thermal stress conditions observed in low-income Asian countries

Yan

Yue

2023

Preprint

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The day-to-day diversity of thermal conditions determines the range of human thermal sensation within a year, and its long-term shift affects thermal comfort demand with profound economic and public health implications. While previous studies have documented historical trends in specific thermal stress events regionally, such as heat waves and cold spells, how the temporal diversity of various thermal stress types has changed in response to climate change remains unexplored. Here, we present a practical and easy-to-use classification framework to characterize daily thermal conditions and then we use the Shannon’s index to quantify the diversity and its long-term shift over the past three decades (1990–2019). Using a high-spatial-resolution dataset of Universal Thermal Climate Index (UTCI) we developed for Asian regions, we quantify the diversity of daily thermal stress types and the population-weighted trends for each country in South, Southeast and East Asia. We find that human thermal stress conditions have become more diversified, especially in low-income tropical countries. This disproportionately stronger diversification in daily thermal stress types may worsen socio-economic inequity between wealthy and poor countries, posing great adaptation challenge for the latter.

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Daily diurnal temperature range associated with emergency ambulance calls: a nine-year time-series study

Guo,

Cai,

Chen

et al. 2024

Front. Public Health

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BackgroundDiurnal temperature range (DTR) is associated with the increased risk of morbidity and mortality. However, the relationship between DTR and emergency ambulance calls (EACs), which more accurately and immediately reflect the health impacts of temperature changes, remains underexplored in China.MethodsWe collected daily data on EACs and meteorological factors from 2009 to 2017 in Guangzhou, China. DTR, representing the temperature range within a day, was calculated by subtracting the minimum temperature from the maximum temperature for each day. Generalized additive models were used to estimate the association between DTR and EACs for all-cause, cardiovascular diseases, and respiratory diseases. Additionally, subgroup and sensitivity analyses were conducted in our study.ResultsWe found significant associations between daily DTR and EACs. The excess risks (ERs) were 0.47% (95% CI: 0.14, 0.81%) for all-cause EACs, 0.94% (95% CI: 0.46, 1.43%) for cardiovascular-related EACs, and 1.31% (95% CI: 0.76, 1.86%) for respiratory -related EACs at lag01, respectively. Subgroup analyses indicated that these associations were notably stronger among the older, males, and during the warm season. Specifically, there was an increase of 1.16% (95% CI: 0.59, 1.74%) in cardiovascular-related EACs among the older adult, compared to 0.45% (95% CI: −0.21, 1.12%) among those younger than 65 years. Among males, the increase was 1.39% (95% CI: 0.79, 1.99%), compared to 0.13% (95% CI: −0.53, 0.79%) among females. During the warm season, the increase was 1.53% (95% CI: 0.74, 2.34%), compared to 0.75% (95% CI: 0.14, 1.37%) during the cold season.ConclusionDTR might increase the risk of daily all-cause, cardiovascular-related, and respiratory-related EACs in Guangzhou, China. The associations were particularly strong among older adults, males, and during the warm season. Implementing public health policies is essential to mitigate the adverse health effects of DTR.

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Daily diurnal temperature range associated with outpatient visits of acute lower respiratory infection in children: A time-series study in Guangzhou, China

Cited by 3 publications

References 45 publications

Extreme temperatures increase the risk of pediatric pneumonia: a systematic review and meta-analysis

Extreme temperatures increase the risk of pediatric pneumonia: a systematic review and meta-analysis

Stronger diversification of human thermal stress conditions observed in low-income Asian countries

Daily diurnal temperature range associated with emergency ambulance calls: a nine-year time-series study

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