Det är bland andra Kristina Mattsson, forskare vid avdelningen för arbets- och miljömedicin vid Lunds universitet, som i en studie kommit fram till att kvinnor som exponerats för rökning tidigt i fosterlivet oftare drabbades av såväl graviditetsdiabetes som fetma senare i livet.

Forskarna använde sig av data för drygt 80 000 graviditeter som registrerats i det medicinska födelseregistret mellan 1982 och 2010.

Eftersom studien är av observationstyp kan den dock inte slå fast att det rör sig om ett äkta orsakssamband.

Forskarna påpekar också att de till exempel inte haft information om eventuella skillnader mellan rökare och ickerökare när det gäller utbildningsnivå, inkomst och andra socioekonomiska faktorer, vilket kan ha påverkat resultaten.

May 2013

Maternal smoking during pregnancy and daughters’ risk of gestational diabetes and obesity

Abstract

Aims/hypothesis

The primary aim of the study was to investigate the risk of developing gestational diabetes in women who were exposed to tobacco smoke in utero. Secondary aims were to assess the risk of obesity and non-gestational diabetes.

Methods

Data were retrieved from the Medical Birth Register of Sweden for women who were born in 1982 (when smoking data were first registered) or later and who had given birth to at least one child; 80,189 pregnancies were included. The associations between in utero smoking exposure (three categories: non-smokers, 1–9 cigarettes/day [moderately exposed] and >9 cigarettes/day [heavily exposed]) and subsequent gestational diabetes (n = 291), non-gestational diabetes (n = 280) and obesity (n = 7,300) were assessed.

Results

The adjusted ORs (aORs) of gestational diabetes were increased among women who were moderately (1.62, 95% CI 1.24, 2.13) and heavily (1.52, 95% CI 1.12, 2.06) exposed. The corresponding aORs of obesity were 1.36 (95% CI 1.28, 1.44) and 1.58 (95% CI 1.48, 1.68), respectively. A reduced OR for non-gestational diabetes was seen in the offspring of heavy smokers (aOR 0.66, 95% CI 0.45, 0.96).

Conclusions/interpretation

Women exposed to smoking during fetal life were at higher risk of developing gestational diabetes and obesity.

Nyhetsinfo

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