Risks of pregnancy and birth in obese primiparous women: an analysis of German perinatal statistics.

Purpose: To compare risks of pregnancy and birth in obese (body mass index, BMI ≥ 30) and normal weight women (BMI 18.5-24.99) giving birth to their first child.

Investigation of the association of Apgar score with maternal socio-economic and biological factors: an analysis of German perinatal statistics.

Purpose: To examine the relationship of 5-min Apgar score with maternal socio-economic and biological factors.

Methods: We analyzed data from 465,964 singleton pregnancies (37-41 weeks' gestation) from the German perinatal statistics of 1998-2000. Using a logistic regression model we analyzed the incidence of low (0-6) 5-min Apgar scores in relation to these maternal factors: body mass index (BMI), age, previous live births, country of origin, occupation, single mother status, working during pregnancy, and smoking.