ArticleInternational journal of biometeorology2014
Characterizing the effect of summer temperature on heatstroke-related emergency ambulance dispatches in the Kanto area of Japan.
Article in International journal of biometeorology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 5 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
34 citing papers in PubMed, 5 syntheses or guidelines pooled it.
- Thermal indices for assessing the impact of outdoor thermal environments on human health: a systematic review of epidemiological studies.International journal of biometeorology · 2025Pooled it
- Heat, heatwaves, and ambulance service use: a systematic review and meta-analysis of epidemiological evidence.International journal of biometeorology · 2023Pooled it
- Heatstroke-related ambulance dispatch risk before and during COVID-19 pandemic: Subgroup analysis by age, severity, and incident place.The Science of the total environment · 2022Pooled it
- Effect of the COVID-19 pandemic on heatstroke-related ambulance dispatch in the 47 prefectures of Japan.The Science of the total environment · 2021Pooled it
- Is planned adaptation to heat reducing heat-related mortality and illness? A systematic review.BMC public health · 2014Pooled it
- Air Conditioning Use and Ambulance Transports for Heat-Related Illness Across Summer Months in the Tokyo Metropolitan Area.Environment & health (Washington, D.C.) · 2026Article
- Mental health impacts of climate change on vulnerable populations in Nigeria and Japan: A systematic review of access to emergency healthcare.Public health in practice (Oxford, England) · 2026Review
- Heat stroke-induced hepatic lipid dysregulation: histological and lipidomic insights.Medical molecular morphology · 2026Article
- Effects of extreme heat on the onset of dementia and all-cause mortality: A 3-year follow-up study in a large population-based cohort in Japan.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Spatio-temporal interpolation and delineation of extreme heat events in California between 2017 and 2021.Environmental research · 2023Article
- Enhancing health resilience in Japan in a changing climate.The Lancet regional health. Western Pacific · 2023Review
- Climate and human health: a review of publication trends in the International Journal of Biometeorology.International journal of biometeorology · 2023Review
- Gridded Datasets for Japan: Total, Male, and Female Populations from 2001-2020.Scientific data · 2023Article
- Trends in ambulance dispatches related to heat illness from 2010 to 2019: An ecological study.PloS one · 2022Article
- Article
- Investigating age and regional effects on the relation between the incidence of heat-related ambulance transport and daily maximum temperature or WBGT.Environmental health and preventive medicine · 2021Article
- COVID-19 pandemic modifies temperature and heat-related illness ambulance transport association in Japan: a nationwide observational study.Environmental health : a global access science source · 2021Observational
- The Effect of Minimum and Maximum Air Temperatures in the Summer on Heat Stroke in Japan: A Time-Stratified Case-Crossover Study.International journal of environmental research and public health · 2021Article
- Article
- Prediction Model of Deep Learning for Ambulance Transports in Kesennuma City by Meteorological Data.Open access emergency medicine : OAEM · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Despite rising concern on the impact of heat on human health, the risk of high summer temperature on heatstroke-related emergency dispatches is not well understood in Japan. A time-series study was conducted to examine the association between apparent temperature and daily heatstroke-related ambulance dispatches (HSAD) within the Kanto area of Japan. A total of 12,907 HSAD occurring from 2000 to 2009 in five major cities-Saitama, Chiba, Tokyo, Kawasaki, and Yokohama-were analyzed. Generalized additive models and zero-inflated Poisson regressions were used to estimate the effects of daily maximum three-hour apparent temperature (AT) on dispatch frequency from May to September, with adjustment for seasonality, long-term trend, weekends, and public holidays. Linear and non-linear exposure effects were considered. Effects on days when AT first exceeded its summer median were also investigated. City-specific estimates were combined using random effects meta-analyses. Exposure-response relationship was found to be fairly linear. Significant risk increase began from 21 °C with a combined relative risk (RR) of 1.22 (95% confidence interval, 1.03-1.44), increasing to 1.49 (1.42-1.57) at peak AT. When linear exposure was assumed, combined RR was 1.43 (1.37-1.50) per degree Celsius increment. Overall association was significant the first few times when median AT was initially exceeded in a particular warm season. More than two-thirds of these initial hot days were in June, implying the harmful effect of initial warming as the season changed. Risk increase that began early at the fairly mild perceived temperature implies the need for early precaution.
Indexed as
Identifiers
23700200What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.