Table 1 Background characteristics of the ROLO cohort for whom vitamin D levels were measured

Early pregnancy 25OHD (nmol/L)

Late pregnancy 25OHD (nmol/L)

Neonatal vitamin 25OHD (nmol/L)

Mother age at delivery (years)

Mother height (cm)

Mother weight booking (kg)

Mother MUAC at booking (cm)

Mother BMI at booking (kg/m²)

Gestational weight gain (kg)

Length of gestation (days)

Birthweight (kg)

Birthweight centile

Birth length (cm)

Birth head circumference (cm)

Birth abdominal circumference (cm)

Birth chest circumference (cm)

Birth hip circumference (cm)

Birth mid upper arm circumference (cm)

Birth thigh circumference (cm)

Birth subscapular SFT (mm)

Birth biceps SFT (mm)

Birth triceps SFT (mm)

Birth thigh SFT (mm)

Birth waist:hip circumference ratio

Birth waist circumference:length ratio

Birth sum of all SFT (mm)

Birth sum of triceps SFT and subscapular SFT (mm)

Birth subscapular SFT:triceps SFT ratio

Age at 6–9 month assessment (weeks)

6–9 month weight-for-age z-score

6–9 month length-for-age z-score

6–9 month BMI-for-age z-score

Age at 2–2.5 year assessment (weeks)

2–2.5 year weight-for-age z-score

2–2.5 year length-for-age z-score

2–2.5 year BMI-for-age z-score

Duration of Breastfeeding (weeks)