BIB P1s (unexposed) N = 1,411 | BIB P2s (exposed) N = 225 | |
---|---|---|
Age in years | ||
Mean (SD) | 29.60 (4.63) | 28.28 (4.64) |
Ethnicity (%) | ||
White British | 32.24 | 28.89 |
Pakistani | 54.69 | 59.11 |
Other | 13.07 | 12.00 |
Education (%) | ||
<5 GCSEs | 24.11 | 24.44 |
5 GCSEs | 33.93 | 36.00 |
A-levels | 13.73 | 10.67 |
Higher than A-level | 20.27 | 24.44 |
Other | 7.97 | 4.44 |
Questionnaire date Mean (SD) | 659.98 (384.71) | 999.48 (237.66) |
Any alcohol (%) | ||
Yes | 53.82 | 33.33 |
No | 46.18 | 66.67 |
Alcohol – 5 units or more (%) | ||
Yes | 25.00 | 25.00 |
No | 75.00 | 75.00 |
Smoking (%) | ||
Yes | 15.13 | 12.50 |
No | 84.87 | 87.50 |
Vitamin D (%) | ||
Yes | 15.10 | 9.33 |
No | 84.90 | 90.67 |
Caffeine (%) | ||
Yes | 61.30 | 59.11 |
No | 38.70 | 40.89 |
Birth weight (grams) Mean (SD) | 3268.28 (534.16) | 3315.04 (496.00) |