Characteristics | Total | Lifestyle | ||
---|---|---|---|---|
Mennonite | Non-Mennonite | P Value | ||
Total water samples (%) | 303 | 74 (24.4) | 229 (75.6) | 0.3 |
Not-valid (%) | 63 (20.8) | 12 (16.2) | 51 (22.3) | |
Valid (%) | 240 (79.2) | 62 (25.8) | 178 (74.2) | |
Mean holding time in hours (95 % CI) | 30 (23.1–36.9) | 32.6 (13.9–51.3) | 29.2 (22.2–36.2) | 0.7 |
Seasons | 0.007 | |||
Fall (%) | 82 (27.1) | 13 (17.6) | 69 (30.1) | 0.034 |
Winter (%) | 52 (17.2) | 18 (24.3) | 34 (14.8) | 0.060 |
Spring (%) | 47 (15.5) | 18 (24.3) | 29 (12.7) | 0.016 |
Summer (%) | 122 (40.3) | 25 (33.8) | 97 (42.4) | 0.2 |
Contamination scores in valid samples (N = 240) | ||||
Water Quality | 0.4 | |||
Potable (%) | 40 (16.7) | 8 (12.9) | 32 (18) | |
Polluted (%) | 200 (83.3) | 54 (87.1) | 146 (82) | |
GI health risk | 0.7 | |||
No risk (%) | 40 (16.7) | 8 (12.9) | 32 (18) | |
Low risk (%) | 87 (36.3) | 23 (37.1) | 64 (36) | |
High risk (%) | 113 (47.1) | 31 (50) | 82 (46.1) | |
Contaminant levels | ||||
Mean total coliform CFUs/100 ml (95 % CI) | 353.3 (267.2–439.4) | 285.5 (200.7–370.4) | 547.8 (325.8–769.9) | 0.3 |
Mean E. coli CFUs/100 ml (95 % CI) | 69.3 (35.1–103.4) | 91.8 (9.3–174.3) | 61.4 (25.4–97.5) | 0.8 |