Table 1: Demographic characteristics.
| Parameter | n = 73 |
| Age less than 5 years | 16 (21.9%) |
| Male | 54 (74%) |
| Source of water supply | |
| MCD | 55 (75.4%) |
| Aqua guard | 1 (1.4%) |
| Filter (candle) | 8 (10.9%) |
| Tanker | 4 (5.5%) |
| Boring | 3 (4.1%) |
| Motor | 2 (2.7%) |
Data expressed in number (percentage), MCD: Municipal Corporation of Delhi.