Table 1.
Sample characteristics maternal characteristics in lactating women (n = 172).
| Characteristics | Mean ± SD |
|---|---|
| Age mother, years | 32 ± 4.2 |
| Time since birth, weeks | 11 ± 6.6 |
| BMI, kg/m2 a | 25 ± 4.7 |
| BMI categories | n (%) |
| <25 | 107 (62.2) |
| ≥25–29.9 | 47 (27.3) |
| ≥30 | 18 (10.5) |
| Number of children | |
| One child | 104 (60.5) |
| More than one child | 68 (39.5) |
| Lactation | |
| Exclusive breastfeeding | 138 (80.2) |
| Partial breastfeeding | 34 (19.8) |
| Education | |
| ≤12 years (high school) | 32 (18.6) |
| 1–4 years higher education | 51 (29.6) |
| >4 years of higher education | 89 (51.7) |
| Country of birth | |
| Norway | 110 (64.0) |
| Other | 62 (35.0) |
| HDI birth countryb | |
| Very high HDI | 131 (76.2) |
| High HDI | 13 (7.6) |
| Medium HDI | 11 (6.4) |
| Low HDI | 17 (9.9) |
| Habitual use of B12 containing supplement | |
| No | 113 (65.7) |
| Yes | 59 (34.3) |
| Took B12 supplement in the last 24 h | |
| No | 133 (75.3) |
| Yes | 39 (22.7) |
| Vegetarian | |
| No | 168 (97.7) |
| Yesc | 4 (2.3) |
aCurrent weight.
bHDI (human development index) is a statistic composite index of life expectancy, education, and per capita income indicators. It is used to rank countries into four tiers of human development from low to high.
cAll four were lacto-ovo vegetarians.