Maternal BMI and preterm birth: A systematic review of the literature with meta-analysis

Abstract

High maternal BMI may have different effects on different types of PTB.

Early pregnancy body mass index and spontaneous preterm birth in Northwest Russia: a registry-based study

“…According to the latest systematic review of the literature with meta-analysis overweight and slightly obese (BMI 30.0-34.9 kg/m 2 ) compared to normal weight women have a 15% reduction of adjusted risk of spontaneous PTB gestation [22]. We did not find any significant effect of overweight group.…”

Ambient temperature as a trigger of preterm delivery in a temperate climate

“…We were able to study potential effect modification by gestational age, gender, parity, maternal age, maternal education and urbanisation, but we had no information on some other important risk factors for preterm birth, such as maternal comorbidity,1 nutrition,50 drinking51 and smoking 52. Maternal underweight increases the risk of spontaneous preterm birth, whereas maternal obesity is more closely linked to elective preterm delivery through obesity-related disorders such as pre-eclampsia and diabetes 1 50. Schifano et al 15 found that mothers with an obstetric pathology, eclampsia or a chronic condition during pregnancy were less vulnerable to the effect of heat on preterm birth, which might be explained by greater medical attention received during pregnancy by these groups of women.…”

Inflammatory and infectious risk factors are associated with the response to tocolysis in patients with preterm labor

“…Preterm delivery (PTD), defined as delivery within 37 weeks of gestation, occurs with a global incidence of 7-11% and represents one of the predominant causes of perinatal mortality and morbidity [1][2][3][4]. About 5% of preterm births occur at early gestational age, with a high prevalence of perinatal mortality, neurodevelopmental impairments, and respiratory and gastrointestinal complications for premature babies [5,6].…”