Characteristic
|
Category
|
Mean counts (CFU/ml)
|
SE Mean
|
St Dev
|
Range (CFU/ml)
|
Correlation coefficient (P value)
|
---|
Condition of well aperture
|
Covered
|
1.15 × 103
|
132
|
1883
|
0-9.0 × 103
| |
Not covered
|
1.18 × 103
|
110
|
1722
|
0-9.0 × 103
|
Height of well casing above the ground (m)
|
0.00
|
1.01 × 103
|
332
|
1726
|
2.0- 7.0 × 103
|
+0.036 (0.260)
|
0.1-0.59
|
1.13 × 103
|
126
|
1807
|
0-9.0 × 103
|
≥0.60
|
1.23 × 103
|
122
|
1797
|
0-9.0 × 103
| |
Distance between well and sanitary structure (m)
|
1.0-10.00
|
1.27 × 103
|
103
|
1851
|
0-9.0 × 103
|
+0.131 (0.000)
|
10.1-15.00
|
9.41 × 102
|
159
|
1649
|
0- 9.0 × 103
|
≥15.00
|
7.18 × 102
|
346
|
1468
|
0-5.5 × 103
| |
State of well
|
New
|
1.30 × 103
|
383
|
1990
|
0-8.0 × 103
| |
Fairly old
|
8.53 × 102
|
132
|
1539
|
0-9.0 × 103
|
Old
|
1.30 × 103
|
111
|
1880
|
0-9.0 × 103
| |
Presence of molded casing
|
No
|
1.06 × 103
|
190
|
1805
|
0-9.0 × 103
| |
|
Yes
|
1.19 × 103
|
95
|
1800
|
0-9.0 × 103
| |
- Well aperture (χ2 = 4.202, df = 1, P = 0.040). Well height: FCC (χ2 =3.727, df = 2, P = 0.155).
- Distance well-pit latrine (χ2 = 0.794, df = 1, P = 0.672). State of well (χ2 = 1.193, df = 2, P = 0.551). Well casing (χ2 = 0.925, df = 1, P = 0.336).