Advertisement
Table 1 Background characteristics of the ROLO cohort for whom vitamin D levels were measured
| Variable | Mean | SD |
|---|---|---|
| Early pregnancy 25OHD (nmol/L) | 41.8 | 19.5 |
| Late pregnancy 25OHD (nmol/L) | 40.0 | 21.4 |
| Neonatal vitamin 25OHD (nmol/L) | 44.6 | 26.1 |
| Mother age at delivery (years) | 33.0 | 3.94 |
| Mother height (cm) | 165 | 15.1 |
| Mother weight booking (kg) | 72.1 | 12.6 |
| Mother MUAC at booking (cm) | 29.2 | 3.15 |
| Mother BMI at booking (kg/m2) | 26.1 | 4.40 |
| Gestational weight gain (kg) | 13.6 | 4.64 |
| Length of gestation (days) | 283 | 7.46 |
| Birthweight (kg) | 4.06 | 0.46 |
| Birthweight centile | 72.5 | 25.0 |
| Birth length (cm) | 52.9 | 2.25 |
| Birth head circumference (cm) | 35.8 | 1.66 |
| Birth abdominal circumference (cm) | 33.6 | 1.93 |
| Birth chest circumference (cm) | 35.6 | 2.27 |
| Birth hip circumference (cm) | 33.7 | 2.31 |
| Birth mid upper arm circumference (cm) | 12.6 | 1.16 |
| Birth thigh circumference (cm) | 16.2 | 1.68 |
| Birth subscapular SFT (mm) | 6.95 | 1.58 |
| Birth biceps SFT (mm) | 6.72 | 1.56 |
| Birth triceps SFT (mm) | 6.97 | 1.53 |
| Birth thigh SFT (mm) | 7.81 | 1.78 |
| Birth waist:hip circumference ratio | 1.00 | 0.06 |
| Birth waist circumference:length ratio | 0.64 | 0.04 |
| Birth sum of all SFT (mm) | 28.5 | 5.37 |
| Birth sum of triceps SFT and subscapular SFT (mm) | 13.9 | 2.77 |
| Birth subscapular SFT:triceps SFT ratio | 1.02 | 0.20 |
| Age at 6–9 month assessment (weeks) | 28.2 | 6.69 |
| 6–9 month weight-for-age z-score | 0.74 | 1.00 |
| 6–9 month length-for-age z-score | 1.30 | 1.12 |
| 6–9 month BMI-for-age z-score | 0.02 | 1.04 |
| Age at 2–2.5 year assessment (weeks) | 109 | 9.86 |
| 2–2.5 year weight-for-age z-score | 0.69 | 1.00 |
| 2–2.5 year length-for-age z-score | 0.90 | 4.87 |
| 2–2.5 year BMI-for-age z-score | 0.40 | 1.28 |
| Duration of Breastfeeding (weeks) | 13.2 | 23.6 |
