Sampling period | Results | Control (total water samples = 86) n (%) | Intervention (total water samples = 102) n (%) | p value |
---|---|---|---|---|
At the start of follow-up | Positive sample | 43 (95.6) | 51 (89.5) | 0.26 |
At the mid follow-up | Positive sample | 35 (85.4) | 42 (93.3) | 0.23 |
Overall results | Positive sample | 78 (90.7) | 93 (91.2) | 0.91 |