Evidence map›Paper›PMID 28701216›Full record

ArticleEnvironmental health : a global access science source2017

The effect of ambient temperature on type-2-diabetes: case-crossover analysis of 4+ million GP consultations across England.

S Hajat, A Haines, C Sarran, A Sharma, C Bates, L E Fleming

Open access · goldAbstract read
In one paragraph

Article in Environmental health : a global access science source, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 7% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 2 syntheses or guidelines pooled it, 81 citations in OpenAlex.

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  18. The Utilization of the WMO-1234 Guidance to Improve Citizen's Wellness and Health: An Italian Perspective.International journal of environmental research and public health · 2022
    Article
  19. Review
  20. The Effects of Heatwaves on Human Morbidity in Primary Care Settings: A Case-Crossover Study.International journal of environmental research and public health · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

S HajatLondon School of Hygiene & Tropical Medicine, London, UK. shakoor.hajat@lshtm.ac.uk.
A HainesLondon School of Hygiene & Tropical Medicine, London, UK.
C SarranMet Office, Exeter, UK.
A SharmaTPP, Horsforth, Leeds, UK.
C BatesTPP, Horsforth, Leeds, UK.
L E FlemingUniversity of Exeter Medical School, Truro, UK.
London School of Hygiene & Tropical Medicine · GBMet Office · GBUniversity of Exeter · GB

Funding

Medical Research Council MR/K019341/1
6 · The paper itself

Abstract

backgroundGiven the double jeopardy of global increases in rates of obesity and climate change, it is increasingly important to recognise the dangers posed to diabetic patients during periods of extreme weather. We aimed to characterise the associations between ambient temperature and general medical practitioner consultations made by a cohort of type-2 diabetic patients. Evidence on the effects of temperature variation in the primary care setting is currently limited.

methodsCase-crossover analysis of 4,474,943 consultations in England during 2012-2014, linked to localised temperature at place of residence for each patient. Conditional logistic regression was used to assess associations between each temperature-related consultation and control days matched on day-of-week.

resultsThere was an increased odds of seeking medical consultation associated with high temperatures: Odds ratio (OR) = 1.097 (95% confidence interval = 1.041, 1.156) per 1 °C increase above 22 °C. Odds during low temperatures below 0 °C were also significantly raised: OR = 1.024 (1.019, 1.030). Heat-related consultations were particularly high among diabetics with cardiovascular comorbidities: OR = 1.171 (1.031, 1.331), but there was no heightened risk with renal failure or neuropathy comorbidities. Surprisingly, lower odds of heat-related consultation were associated with the use of diuretics, anticholinergics, antipsychotics or antidepressants compared to non-use, especially among those with cardiovascular comorbidities, although differences were not statistically significant.

conclusionsType-2 diabetic patients are at increased odds of medical consultation during days of temperature extremes, especially during hot weather. The common assumption that certain medication use heightens the risk of heat illness was not borne-out by our study on diabetics in a primary care setting and such advice may need to be reconsidered in heat protection plans.

Indexed as

Primary Health CareResidence CharacteristicsTemperatureAdolescentAdultAgedAged, 80 and overCase-Control StudiesChildChild, PreschoolCohort StudiesDiabetes Mellitus, Type 2EnglandFemaleHumansInfantClimate changeDiabetes mellitusPrimary careWeather

Identifiers

PMID28701216
PMCPMC5506566
OpenAlexW2735353917

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.