Table 1.
Characteristics of the sample of healthy and well-nourished pregnant women and their full-term, normal-weight newborns (n 210), Reus, Spain, 2004–2008
| Mean or % | sd or n | |
|---|---|---|
| Mothers | ||
| Age (years; mean and sd) | 31·7 | 4·3 |
| Socio-economic status of the family (% and n) | ||
| Low | 8·0 | 17 |
| Medium | 47·5 | 100 |
| High | 44·5 | 93 |
| Smoker† (% and n) | 20·0 | 42 |
| Fe dose of supplementation (mg/d; mean and sd) | 43·9 | 26·6 |
| Trait anxiety score (mean and sd) | 15·4 | 7·9 |
| Hb level (g/l; mean and sd) | ||
| At week 10 | 125·7 | 8·0 |
| At week 24 | 113·1 | 8·6 |
| At week 34 | 114·2 | 9·6 |
| At delivery | 116·9 | 10·9 |
| Anaemia (% and n) | ||
| At week 10 (Hb<110 g/l) | 2·9 | 6 |
| At week 24 (Hb<105 g/l) | 14·9 | 31 |
| At week 34 (Hb<110 g/l) | 28·2 | 59 |
| At delivery (Hb<110 g/l) | 21·5 | 45 |
| Hb>130 g/l (% and n) | ||
| At week 10 | 28·4 | 59 |
| At week 24 | 1·4 | 3 |
| At week 34 | 6·2 | 13 |
| At delivery | 12·0 | 25 |
| Newborns | ||
| Gender of newborn is male (% and n) | 47·6 | 100 |
| Gestational age (weeks; mean and sd) | 39·3 | 1·4 |
| Birth weight (g; mean and sd) | 3231·2 | 403·7 |
| Umbilical-cord ferritin (µg/l; mean and sd) | 125·2 | 1·8 |
†
Active or second-hand smoker.