Dr 550c scale

Trained research staff conducted all anthropometric assessments for child and mother and were re-certified based on video review by a pediatrician on a yearly basis. Children were weighed using a Seca Baby Scale Model 334. Child length was measured recumbent using a Seca Infantometer Model 417. Mothers’ weight was measured using a Detecto DR-550C scale and height was measured using a Seca 213/217 stadiometer. All measurements were taken twice and the average was calculated for use in analyses. For both children and mothers, if measurements were off by 0.5 centimeter or more for length/height, or by 0.1 kilogram or more for weight, participants were measured two additional times and the new average was calculated.

The weight and height of children were measured by trained research staff using a Detecto DR-550C scale (calibrated weekly) and Seca 213/217 stadiometer. Children were measured twice and if measurements differed by more than 0.1 kg (for weight) or 0.5 cm (for height) two more measurements were taken. Body mass index (BMI) was calculated, and weight status calculated as overweight (BMI ≥ 85% for age and sex) vs. not overweight (BMI < 85% for age and sex) based on the US Centers for Disease Control reference growth curves (Kuczmarski et al., 2002 ).