Faecal coliforms | E. coli | |||||
---|---|---|---|---|---|---|
Before | After | Household | Before | After | Household | |
No. of obs. | 3186 | 3186 | 6278 | 3186 | 3186 | 6278 |
Mean (SD) | 552.52 (14,773.02) | 343.17 (12,027.65) | 16,397.2 (253,386.2) | 46.73 (877.78) | 23.21 (584.14) | 253.53 (12,413.4) |
Range (min, max) | 0, 800,000 | 0, 700,000 | 0, 18,000,000 | 0, 27,000 | 0, 24,000 | 0, 980,000 |
Geometric mean (SD of log variables) | 19.88 (1.02) | 22.23 (0.98) | 197.51 (1.56) | 9.58 (0.432) | 14.29 (0.317) | 16.33 (0.795) |