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Influence of environmental temperature on risk of gestational diabetes.

Abstract Cold-induced thermogenesis is known to improve insulin sensitivity, which may become increasingly relevant in the face of global warming. The aim of this study was to examine the relation between outdoor air temperature and the risk of gestational diabetes mellitus.
PMID
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Authors

Mayor MeshTerms

Temperature

Keywords
Journal Title cmaj : canadian medical association journal = journal de l'association medicale canadienne
Publication Year Start




PMID- 28507087
OWN - NLM
STAT- MEDLINE
DA  - 20170516
DCOM- 20170525
LR  - 20170525
IS  - 1488-2329 (Electronic)
IS  - 0820-3946 (Linking)
VI  - 189
IP  - 19
DP  - 2017 May 15
TI  - Influence of environmental temperature on risk of gestational diabetes.
PG  - E682-E689
LID - 10.1503/cmaj.160839 [doi]
AB  - BACKGROUND: Cold-induced thermogenesis is known to improve insulin sensitivity,
      which may become increasingly relevant in the face of global warming. The aim of 
      this study was to examine the relation between outdoor air temperature and the
      risk of gestational diabetes mellitus. METHODS: We identified all births in the
      Greater Toronto Area from 2002 to 2014 using administrative health databases.
      Generalized estimating equations were used to examine the relation between the
      mean 30-day outdoor air temperature before the time of gestational diabetes
      mellitus screening and the likelihood of diagnosis of gestational diabetes
      mellitus based on a validated algorithm using hospital records and physician
      service claims. RESULTS: Over the 12-year period, there were 555 911 births among
      396 828 women. Prevalence of gestational diabetes mellitus was 4.6% among women
      exposed to extremely cold mean outdoor air temperatures (</= -10 degrees C) in
      the 30-day period before screening and increased to 7.7% among those exposed to
      hot mean 30-day temperatures (>/= 24 degrees C). Each 10 degrees C increase in
      mean 30-day temperature was associated with a 1.06 (95% confidence interval [CI] 
      1.04-1.07) times higher odds of gestational diabetes mellitus, after adjusting
      for maternal age, parity, neighbourhood income quintile, world region and year. A
      similar effect was seen for each 10 degrees C rise in outdoor air temperature
      difference between 2 consecutive pregnancies for the same woman (adjusted odds
      ratio 1.06, 95% CI 1.03-1.08). INTERPRETATION: In our setting, there was a direct
      relation between outdoor air temperature and the likelihood of gestational
      diabetes mellitus. Future climate patterns may substantially affect global
      variations in the prevalence of diabetes, which also has important implications
      for the prevention and treatment of gestational diabetes mellitus.
CI  - (c) 2017 Canadian Medical Association or its licensors.
FAU - Booth, Gillian L
AU  - Booth GL
AD  - Departments of Medicine (Booth, Ray) and Obstetrics and Gynecology (Ray), St.
      Michael's Hospital; Institute for Clinical Evaluative Sciences (Booth, Luo, Park,
      Feig, Moineddin, Ray); Department of Medicine (Feig), Mount Sinai Hospital;
      Department of Family and Community Medicine (Moineddin), and Department of
      Medicine (Booth, Feig, Ray), University of Toronto, Toronto, Ont. [email protected]
FAU - Luo, Jin
AU  - Luo J
AD  - Departments of Medicine (Booth, Ray) and Obstetrics and Gynecology (Ray), St.
      Michael's Hospital; Institute for Clinical Evaluative Sciences (Booth, Luo, Park,
      Feig, Moineddin, Ray); Department of Medicine (Feig), Mount Sinai Hospital;
      Department of Family and Community Medicine (Moineddin), and Department of
      Medicine (Booth, Feig, Ray), University of Toronto, Toronto, Ont.
FAU - Park, Alison L
AU  - Park AL
AD  - Departments of Medicine (Booth, Ray) and Obstetrics and Gynecology (Ray), St.
      Michael's Hospital; Institute for Clinical Evaluative Sciences (Booth, Luo, Park,
      Feig, Moineddin, Ray); Department of Medicine (Feig), Mount Sinai Hospital;
      Department of Family and Community Medicine (Moineddin), and Department of
      Medicine (Booth, Feig, Ray), University of Toronto, Toronto, Ont.
FAU - Feig, Denice S
AU  - Feig DS
AD  - Departments of Medicine (Booth, Ray) and Obstetrics and Gynecology (Ray), St.
      Michael's Hospital; Institute for Clinical Evaluative Sciences (Booth, Luo, Park,
      Feig, Moineddin, Ray); Department of Medicine (Feig), Mount Sinai Hospital;
      Department of Family and Community Medicine (Moineddin), and Department of
      Medicine (Booth, Feig, Ray), University of Toronto, Toronto, Ont.
FAU - Moineddin, Rahim
AU  - Moineddin R
AD  - Departments of Medicine (Booth, Ray) and Obstetrics and Gynecology (Ray), St.
      Michael's Hospital; Institute for Clinical Evaluative Sciences (Booth, Luo, Park,
      Feig, Moineddin, Ray); Department of Medicine (Feig), Mount Sinai Hospital;
      Department of Family and Community Medicine (Moineddin), and Department of
      Medicine (Booth, Feig, Ray), University of Toronto, Toronto, Ont.
FAU - Ray, Joel G
AU  - Ray JG
AD  - Departments of Medicine (Booth, Ray) and Obstetrics and Gynecology (Ray), St.
      Michael's Hospital; Institute for Clinical Evaluative Sciences (Booth, Luo, Park,
      Feig, Moineddin, Ray); Department of Medicine (Feig), Mount Sinai Hospital;
      Department of Family and Community Medicine (Moineddin), and Department of
      Medicine (Booth, Feig, Ray), University of Toronto, Toronto, Ont.
LA  - eng
PT  - Journal Article
PL  - Canada
TA  - CMAJ
JT  - CMAJ : Canadian Medical Association journal = journal de l'Association medicale
      canadienne
JID - 9711805
SB  - AIM
SB  - IM
MH  - Adult
MH  - Databases, Factual
MH  - Diabetes, Gestational/*epidemiology
MH  - Female
MH  - Humans
MH  - Logistic Models
MH  - Maternal Age
MH  - Odds Ratio
MH  - Ontario
MH  - Parity
MH  - Pregnancy
MH  - Risk Factors
MH  - *Temperature
PMC - PMC5433869
COI - Competing interests: None declared.
EDAT- 2017/05/17 06:00
MHDA- 2017/05/26 06:00
CRDT- 2017/05/17 06:00
PHST- 2016/12/28 [accepted]
AID - 189/19/E682 [pii]
AID - 10.1503/cmaj.160839 [doi]
PST - ppublish
SO  - CMAJ. 2017 May 15;189(19):E682-E689. doi: 10.1503/cmaj.160839.

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