Table 1.
Characteristics of the study population of healthy children with non-Western immigrant background (n 102), Oslo, Norway, February–September 2015
| Age (months), mean and min–max | 12·5 | 9·3–16·1 |
|---|---|---|
| Sex, n and % | ||
| Girls | 55 | 55 |
| Boys | 47 | 45 |
| Ethnic background, n and % | ||
| Africa | 31 | 30 |
| Asia | 34 | 33 |
| Middle-East | 26 | 26 |
| Others* | 11 | 11 |
| Vitamin D supplements, % and n | ||
| Yes | 94 | 92 |
| No | 8 | 8 |
| Proportion currently breast-feeding, % and n | 50 | 49 |
| Proportion formula-feeding, % and n | 56 | 57 |
| Season blood taken, % and n | ||
| April–September | 64 | 64 |
| February–March | 36 | 36 |
| s-25(OH)D (nmol/l), mean and sd † | ||
| Total | 52·3 | 16·3 |
| Girls | 51·5 | 17·2 |
| Boys | 53·2 | 17·2 |
| Hb (g/dl), mean and sd | ||
| Total | 11·3 | 1·1 |
| Girls | 11·2 | 1·1 |
| Boys | 11·3 | 1·1 |
s-25(OH)D, serum 25-hydroxyvitamin D.
*
Including Turkey, Kosovo.
†
Range=22–109 nmol/l.