Health related characteristics of the working children
| Variable | Number | % | Mean | SD |
| Smoking status | ||||
| ⩾5/day | 51 | 37.8% | — | — |
| <5/day | 84 | 62.2% | ||
| Wt/age z score | ||||
| > (2 SD) | 1 | 0.7% | −0.081 | 1.13 |
| 1—(2 SD) | 20 | 14.9% | ||
| 0—(1 SD) | 50 | 37.0% | ||
| (0 SD) | 2 | 1.5% | ||
| 0—(−1 SD) | 30 | 22.2% | ||
| −1—(−2 SD) | 25 | 18.5% | ||
| < (−2 SD) | 7 | 5.2% | ||
| Ht/age z score | ||||
| > (2 SD) | 1 | 0.7% | ||
| 1—(2 SD) | 14 | 10.4% | ||
| 0—(1 SD) | 44 | 32.6% | ||
| (0 SD) | 00 | 0.0% | −0.365 | 1.21 |
| 0—(−1 SD) | 33 | 24.4% | ||
| −1—(−2 SD) | 30 | 22.3% | ||
| (−2 SD) | 13 | 9.6% | ||
| Packed cell volume | ||||
| 29–353-150 | 46 | 34.6% | 37.05 | 3.71 |
| ⩾36 | 87 | 65.4% |
↵3-150 Anaemic range.