INTRODUCTION: We investigated the role of body mass index (BMI) and maternal age on the risk of late-term induction, prolonged induction time and caesarean section (CS) after induction. MATERIAL AND METHODS: This is a retrospective, observational study. All women without any fetal or maternal pathological condition, uterine scars or any other indication for an elective caesarean birth and had a singleton foetus in the cephalic position at term were included. RESULTS: A total of 4006 women had a spontaneous onset of labour and 612 were induced for a late-term pregnancy. Labour induction was significantly more common in overweight (Adj Odds Ratio (OR) 1.48 95%CI 1.22-1.78) and obese (Adj OR 1.63 95%CI 1.24-2.14) women. Among induced women, a BMI ≥ 30 was a risk factor for a prolonged induction time in both nulliparous (AdjOR 2.4, 95%CI 1.02-5.67) and multiparous women (AdjOR 4.24, 95%CI 1.02-17.6). A BMI > 25-29.9 was significantly associated with a prolonged induction time only in nulliparous women (AdjOR 1.86 95%CI 1.05-3.30). A CS was more frequent in overweight (AdjOR 1.74, 95% CI 1.052.89) and obese women (AdjOR 2.72, 95%CI 1.42-5.25). Nulliparous women ageed 30-34 years had an induction time longer than women <30 years (OR 2.04 95%CI 1.07-3.91). CONCLUSIONS: The results of this study suggest that a BMI > 25 kg/m2 at term of pregnancy is a risk factor for the induction of labour during a late-term pregnancy, a prolonged induction time and higher caesarean section rate.
Maternal age and body mass index at term : risk factors for requiring an induced labour for a late-term pregnancy / E. Ferrazzi, G. Brembilla, S. Cipriani, S. Livio, A. Paganelli, F. Parazzini. - In: EUROPEAN JOURNAL OF OBSTETRICS, GYNECOLOGY, AND REPRODUCTIVE BIOLOGY. - ISSN 0301-2115. - 233(2019 Feb), pp. 151-157.
|Titolo:||Maternal age and body mass index at term: Risk factors for requiring an induced labour for a late-term pregnancy|
|Parole Chiave:||BMI; Induction of labour; Late-term pregnancy; Maternal age; Adult; Delivery, Obstetric; Female; Humans; Labor, Induced; Logistic Models; Obesity; Parity; Pregnancy; Pregnancy Complications; Pregnancy Trimester, Third; Retrospective Studies; Term Birth; Body Mass Index; Maternal Age|
|Settore Scientifico Disciplinare:||Settore MED/40 - Ginecologia e Ostetricia|
|Data di pubblicazione:||feb-2019|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.ejogrb.2018.12.018|
|Appare nelle tipologie:||01 - Articolo su periodico|