Table 1.
Characteristics of studies included in meta-analysis
| Study | Cholecalciferol dose | Duration (years) | No | Ethnicity | Pubertal stage | Female (%) | Mean (range) age (years) | Baseline serum vitamin D level (nmol/L) | Site measured* |
|---|---|---|---|---|---|---|---|---|---|
| Andersen 200852 | 400 or 200 IU/day | 1 | 26 | Pakistani | NS | 100 | 12.2† (10.1-14.7) | 7.3-16.9 | Lumbar spine, total body |
| Cheng 200527 | 200 IU/day | 2 | 98 | White | Prepubertal | 100 | 11.1 (10-12) | 49.5 | Hip, lumbar spine, total body |
| Du 200432 | 132 IU/day | 2 | 498 | Chinese | Mixed | 100 | 10.1 (NS) | 17.7-20.6 | Forearm, total body |
| El Hajj Fuleihan 200633 54: | |||||||||
| Males | 1400 IU/week or 14 000 IU/week | 1 | 184 | NS | Mixed | 0 | 13.0 (10-17) | 40 | Lumbar spine, hip, 1/3 radius, total body |
| Females | 1400 IU/week or 14 000 IU/week | 1 | 179 | NS | Mixed | 100 | 13.2 (10-17) | 34.9 | Lumbar spine, hip, 1/3 radius, total body |
| Viljakainen 200634 | 400 or 200 IU/day | 1 | 228 | White | 100 | 11.4 (11-12) | 47 | Lumbar spine, hip |
NS=Not specified.
*Further details of measures in Cochrane review.53
†Median.