Table 3.
Characteristics of the 85 infants in the NoMic cohort who fulfilled eligible criteria; vaginally delivered, not been exposed to antibiotics (directly or indirectly through the mother), were exclusively breastfed for one month and still breastfed (partially or exclusively) at 4 months of age.
| % |
||
|---|---|---|
| Maternal age (years) | ||
| <=27 år | 17.6 | |
| 28-31 | 41.2 | |
| >32 | 41.2 | |
| Childs birth weight (g) | ||
| 2500- 3499 | 43.5 | |
| 3500 to 3999 | 31.8 | |
| >4000 | 24.7 | |
| Gestational age (days) |
||
| 260-279 | 21.2 | |
| 280-294 | 67.1 | |
| >294 | 11.8 | |
| Maternal BMI (kg/m2) a | ||
| 10-18.49 | 2.5 | |
| 18.5-24.9 | 70.0 | |
| 25-29.9 | 25.0 | |
| >30 | 2.5 | |
| Maternal parity (%) | ||
| First child | 33.7 | |
| Second child | 49.4 | |
| Third child or more |
16.9 | |
| Maternal smoking (%)b | ||
| No | 89.5 | |
| Occasional or |
10.6 | |
| Child sex (%) | ||
| Female | 50.6 | |
| Male | 49.4 | |
| Maternal education (%) | ||
| <12 years | 3.6 | |
| 12 years | 24.1 | |
| 13 to 16 years | 41.0 | |
| More than 16 years |
31.3 | |
| Nationality (%) | ||
| Norwegian ethnicity | 91.8 | |
| Not Norwegian | 8.2 | |
| Exclusive breastfeeding at 4 months | ||
| No | 38.8 | |
| Yes | 61.2 | |
a
Pre-pregnancy body mass index.
b
Information on smoking collected after delivery.
Missing information for education; n=2, BMI; n=3, smoking; n=1. One mother participated with two infants. No twins.