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Seasonal and SARS-CoV-2 pandemic changes in the incidence of gestational diabetes.
Cauldwell, M; van-de-L'Isle, Y; Watt Coote, I; Steer, P J.
  • Cauldwell M; Department of Obstetrics, Maternal Medicine Service, St George's University Hospital, London, UK.
  • van-de-L'Isle Y; Department of Obstetrics, Maternal Medicine Service, St George's University Hospital, London, UK.
  • Watt Coote I; Department of Obstetrics, Maternal Medicine Service, St George's University Hospital, London, UK.
  • Steer PJ; Academic Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital, London, UK.
BJOG ; 128(11): 1881-1887, 2021 10.
Article in English | MEDLINE | ID: covidwho-1429452
ABSTRACT

OBJECTIVE:

To test the hypothesis that there is seasonal variation in the rates of gestational diabetes (GDM) diagnosed using a 2-hour oral glucose tolerance test.

DESIGN:

Monthly assessment of the percentage of women screened from 1 April 2016 to the 31 December 2020 who were diagnosed as having gestational diabetes.

SETTING:

London teaching hospital. POPULATION 28 128 women receiving antenatal care between 1 April 2016 and 31 December 2020.

METHODS:

Retrospective study of prospectively collected data. MAIN OUTCOME

MEASURES:

Proportion of women screened diagnosed as having gestational diabetes.

RESULTS:

The mean (SD) percentage of women diagnosed with GDM was 14.78 (2.24) in summer (June, July, August) compared with 11.23 (1.62) in winter (P < 0.001), 12.13 (1.94) in spring (P = 0.002) and 11.88 (2.67) in autumn (P = 0.003). There was a highly significant positive correlation of the percentage testing positive for GDM with the mean maximum monthly temperature (R2  = 0.248, P < 0.001). There was a statistically significant 33.8% increase in the proportion of GDM diagnoses from June 2020 onwards, possibly related to a reduction in exercise secondary to the Covid-19 pandemic.

CONCLUSIONS:

There is a 23.3% higher rate of GDM diagnoses in the warmer summer months. There has been a 33.8% rise in GDM diagnoses associated with the Covid-19 pandemic. TWEETABLE ABSTRACT Rates of GDM are higher in summer and since the onset of the Covid-19 pandemic.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Seasons / Diabetes, Gestational / COVID-19 Type of study: Cohort study / Observational study / Prognostic study Limits: Adult / Female / Humans / Pregnancy Country/Region as subject: Europa Language: English Journal: BJOG Journal subject: Gynecology / Obstetrics Year: 2021 Document Type: Article Affiliation country: 1471-0528.16779

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Seasons / Diabetes, Gestational / COVID-19 Type of study: Cohort study / Observational study / Prognostic study Limits: Adult / Female / Humans / Pregnancy Country/Region as subject: Europa Language: English Journal: BJOG Journal subject: Gynecology / Obstetrics Year: 2021 Document Type: Article Affiliation country: 1471-0528.16779