Table 2 The distribution of children according to vitamin D status in the studied groups
From: Association of 25-hydroxy vitamin D with asthma and its severity in children: a case–control study
| Variables | 25(OH) vit. D | ||
|---|---|---|---|
| Groups | Normal | Deficiency | Severe deficiency |
| Asthma | 106 (40.8%) | 105 (40.4%) | 49 (18.8%) |
| Non-asthma | 144 (55.4%) | 86 (33.1%) | 25 (11.5%) |
| P-value* | 0.002 | ||