Bivariate regression analysis of the status of micronutrients among subjects from both groups (N=318)
| Micronutrient variables | Intervention, n (%) | Control, n (%) | OR (95% CI) | |
| Serum vitamin D* | Low | 158 (99.4) | 158 (99.4) | – |
| Normal | 1 (0.6) | 1 (0.6) | ||
| Serum vitamin B12† | Low | 40 (25.2) | 74 (46.5) | 2.59 (1.61 to 4.16) |
| Normal | 119 (74.8) | 85 (53.5) | ||
| Serum calcium‡ | Low | 14 (8.8) | 39 (24.5) | 3.36 (1.74 to 6.49) |
| Normal | 145 (91.2) | 120 (75.5) | ||
| Anaemia§ | Anaemic | 50 (31.4) | 66 (41.5) | 1.54 (0.97 to 2.45) |
| Non-anaemic | 109 (68.6) | 93 (58.5) | ||
*Mean (±SD) vitamin D level was 16.62 (±4.73) and 16.34 (±4.99) in the intervention and control group, respectively.
†Mean (±SD) vitamin B12 level was 266.27 (±113.99) and 225.01 (±114.54) in the intervention and control group, respectively.
‡Mean (±SD) serum calcium level was 9.44 (±0.64) and 9.10 (±0.73) in the intervention and control group, respectively.
§Mean (±SD) serum haemoglobin level was 12.14 (±1.28) and 12.19 (±1.20) in the intervention and control group, respectively.