Gestational diabetes & diabetes in pregnancy

Use of metformin and insulin among pregnant women with gestation diabetes in the United Kingdom: A population‐based cohort study

Diabet MedPublished Population-based cohort study

Authors' conclusion

Metformin was the most prescribed medication for GDM, with large increases over the past 2 decades. The increasing use of oral-antidiabetic drugs during pregnancy, consistent with other regions, highlights the need for future studies examining effectiveness and safety of antidiabetic drug use during pregnancy.

Study context

Population
Pregnancies of women without prior diabetes who received a GDM diagnosis or initiated an antidiabetic drug after 20 weeks gestation, UK, 1998–2017pregnancies from 5393 women
Participants
5,633 pregnancies
Exposure
Metformin initiators vs insulin initiators
Outcome
Use of metformin and insulin during pregnancy among women with GDM
Follow-up
1998 to 2017
Methodological detailslinked data: Clinical Practice Research Datalink, pregnancy register, Hospital Episode Statistics
  • Linked data: Clinical Practice Research Datalink, pregnancy register, Hospital Episode Statistics

Main finding

As reported in the abstract

Pharmacotherapy initiation
Initiated pharmacotherapy
38.9%
Metformin prescriptions (vs insulin), before 2007
<5% of pregnancies
Metformin prescriptions (vs insulin), 2008
42.5%
Pregnancies on pharmacotherapy prescribed metformin first-line, 2015
Over 85%

Observational data: associations, not effects.

Further findings

Rescue insulin among metformin initiators

Initiated rescue insulin, typically within 40 days of metformin initiation
16%

Choice of GDM pharmacotherapy by characteristics

Choice varied by smoking, obesity, race/ethnicity and general practice regions

Original publication

Use of metformin and insulin among pregnant women with gestation diabetes in the United Kingdom: A population‐based cohort study. Diabet Med. Published 17 April 2023. doi:10.1111/dme.15108

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.