| Socio-economic data | Effective (n: 91) | Percentage |
| Age in years | ||
| <1 | 8 | 8.8 |
| 1 - 4 | 33 | 36.3 |
| 5 - 10 | 26 | 28.6 |
| 11 - 15 | 24 | 26.4 |
| Sex | ||
| Male | 59 | 64.8 |
| Female | 32 | 35.2 |
| Parents socio-economic conditions | ||
| Favourable | 7 | 7.7 |
| Acceptable | 41 | 45 |
| Unfavourable | 43 | 47.3 |
| Mode of admission | ||
| Brought in by parents | 72 | 79.1 |
| Referred | 19 | 20.9 |