Association between ambient temperature and ambulance dispatch: a systematic review and meta-analysis

Er, Xu; Li, Yanni; Li, Tingting; Li, Qing

doi:10.1007/s11356-022-20508-3

Cited by 10 publications

(6 citation statements)

References 60 publications

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“…49−53 However, these reviews have focused solely on evaluating a portion of cardiovascular pathology, specifically, that which results in patient death, hospitalization or emergency department care. A recent review and meta-analysis 54 evaluated the effects of temperature on ACO globally but did not focus specifically on cardiovascular alerts.…”

Section: ■ Discussionmentioning

confidence: 99%

“…The relationship between ambient temperature and cardiovascular morbidity and mortality has been extensively studied and reviewed in the scientific literature, with several meta-analyses and reviews having been conducted to date. − However, these reviews have focused solely on evaluating a portion of cardiovascular pathology, specifically, that which results in patient death, hospitalization or emergency department care. A recent review and meta-analysis evaluated the effects of temperature on ACO globally but did not focus specifically on cardiovascular alerts.…”

Section: Discussionmentioning

confidence: 99%

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Effect of Temperature on Emergency Ambulance Call-Outs for Cardiovascular Causes: A Scoping Review

2023

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Climate change has increased interest in the effects of the thermal environment on cardiovascular health. Most studies have focused on mortality data. However, pre-hospital care data are better able to evaluate these effects, as they can register the full spectrum of the disease in real time. This scoping review aims to synthesize the epidemiological evidence regarding the effects of the thermal environment on cardiovascular morbidity in the pre-hospital setting, evaluated through ambulance calls. A staged literature search was performed using the PubMed database for the period between 1st January 2000 and 30th March 2023, using the MeSH terms “Weather” AND “Emergency Medical Services”. A total of 987 publications were identified that examined the correlation between the thermal environment and ambulance call-outs for cardiovascular causes. The studies were mostly ecological time series, with significant variability in the methodological aspects employed. An increase in the number of ambulance call-outs has been observed in association with low temperatures, both for overall cardiovascular pathologies and for certain pathological subtypes. For high temperatures, no effect has been observed in overall call-outs, although an increase has been observed during heat waves. The demand for ambulances for cardiac arrests is increased by both low and high temperatures and during heat waves. Ambulance call-outs for cardiovascular causes increase with low temperatures and heat waves, with no significant increase in the overall demand associated with high temperatures. Ambulance call-outs for cardiac arrests are the only subtype that is increased by high temperatures.

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Section: ■ Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effect of Temperature on Emergency Ambulance Call-Outs for Cardiovascular Causes: A Scoping Review

2023

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“…In the case of heat-related incidents, EMS can typically provide care to immediately cool down an individual and stabilize the patient until they can arrive at a hospital or medical center [10]. Given that, the EMS data can provide information about an individual's health status and treatment options before death [11]. The timeliness of EMS data makes them a vital indicator for assessing downstream health impacts resulting from extreme heat [11].…”

Section: Introductionmentioning

confidence: 99%

“…Given that, the EMS data can provide information about an individual's health status and treatment options before death [11]. The timeliness of EMS data makes them a vital indicator for assessing downstream health impacts resulting from extreme heat [11]. These factors highlight the need to predict demand during extreme heat events.…”

Section: Introductionmentioning

confidence: 99%

Hourly Associations between Heat Index and Heat-Related Emergency Medical Service (EMS) Calls in Austin-Travis County, Texas

Seong,

Jiao,

Mandalapu

2023

IJERPH

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This paper aims to investigate the following research questions: (1) what are the hourly patterns of heat index and heat-related emergency medical service (EMS) incidents during summertime?; and (2) how do the lagged effects of heat intensity and hourly excess heat (HEH) vary by heat-related symptoms? Using the hourly weather and heat-related EMS call data in Austin-Travis County, Texas, this paper reveals the relationship between heat index patterns on an hourly basis and heat-related health issues and evaluates the immediate health effects of extreme heat events by utilizing a distributed lag non-linear model (DLNM). Delving into the heat index intensity and HEH, our findings suggest that higher heat intensity has immediate, short-term lagged effects on all causes of heat-related EMS incidents, including in cardiovascular, respiratory, neurological, and non-severe cases, while its relative risk (RR) varies by time. HEH also shows a short-term cumulative lagged effect within 5 h in all-cause, cardiovascular, and non-severe symptoms, while there are no statistically significant RRs found for respiratory and neurological cases in the short term. Our findings could be a reference for policymakers when devoting resources, developing extreme heat warning standards, and optimizing local EMS services, providing data-driven evidence for the effective deployment of ambulances.

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“…The relationship between weather and human health has long been a popular research topic among scholars in different disciplines. In the early days, scholars focused on analyzing the effects of weather on different health-related events such as mortality ( 1 , 2 ), morbidity ( 2 , 3 ), suicide attempts ( 4 , 5 ), and emergency health services demand ( 6 ). When the quantity of related studies became saturated, scholars started to extend their research in two main directions: first, improving their data analysis techniques; and second ( 7 , 8 ), replacing traditional weather factors with comprehensive biometeorological indexes as the predictors of dependent variables ( 9 , 10 ).…”

Section: Introductionmentioning

confidence: 99%

The need for location-specific biometeorological indexes in Taiwan

Wong

Nguyen²

2022

Front. Public Health

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ObjectiveAs most available biometeorological indexes were developed decades ago in western countries, the benefit of using these indexes to study the effect of weather on human health in modern eastern countries is questionable. This study aimed to reconfirm the effectiveness of applying these biometeorological indexes when analyzing demand for daily emergency ambulance services (EAS) in Taipei.MethodsMore than 370,000 EAS usage records were analyzed in this study. The records were first allotted into different time-series data by age, gender, triage level, and case nature (trauma/non-trauma) in order to represent different kinds of daily EAS demand. They were then regressed on biometeorological indexes [Apparent Temperature (AT) and Net Effective Temperature (NET)]; the indexes' additional descriptive power to describe the daily EAS demand over traditional weather factors was then assessed.ResultsNo significant difference was observed in the descriptive powers in terms of effect on daily EAS demand of the biometeorological indexes and traditional weather factors. The largest improvement on the regression models' adjusted-R2 using NET and AT was only 0.008.ConclusionIt may not be a good idea to make direct use of the biometeorological indexes developed in western countries decades ago. Taiwan should have a tailor-made biometeorological index for a better representation of its unique situation.

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Association between ambient temperature and ambulance dispatch: a systematic review and meta-analysis

Cited by 10 publications

References 60 publications

Effect of Temperature on Emergency Ambulance Call-Outs for Cardiovascular Causes: A Scoping Review

Effect of Temperature on Emergency Ambulance Call-Outs for Cardiovascular Causes: A Scoping Review

Hourly Associations between Heat Index and Heat-Related Emergency Medical Service (EMS) Calls in Austin-Travis County, Texas

The need for location-specific biometeorological indexes in Taiwan

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