Which of the following is a risk factor for developing gestational diabetes?

Having a previous history of gestational diabetes is a recognized risk factor for developing the condition in subsequent pregnancies. When a woman has experienced gestational diabetes in the past, her likelihood of having it again increases significantly due to underlying factors that may predispose her to insulin resistance or impaired glucose tolerance.

Gestational diabetes typically develops during pregnancy when hormonal changes affect insulin utilization. A woman who has had this condition before may have already demonstrated an inability to manage glucose levels effectively during her first pregnancy, suggesting that her body may respond similarly in future pregnancies.

In contrast, being underweight is generally not associated with higher risks for developing gestational diabetes; rather, being overweight or obese is more relevant. Non-smoker status also does not correlate with an increased risk for gestational diabetes, as smoking tends to have more of an impact on other health issues. Additionally, being aged 30 and below does not typically increase risk either; rather, age is a factor when it comes to older mothers, specifically those over 25 or 30, who have higher chances of developing gestational diabetes.

Thus, the previous history of gestational diabetes remains a key indicator for assessing future risks during pregnancy.