Fig. 4: Body weight and mothers age.
From: Obesity in pregnant women: a 20-year analysis of the German experience

Differences in periconceptional maternal body weight (mean and standard deviation [s]) according to maternal age in Schleswig-Holstein). The purple curve shows weight distribution in correlation to maternal age (years) in 1995 (n = 23,746), the orange curve gives the corresponding information for 2017 (n = 20,274).