Table 4

Relationship between well characteristics and total coliform counts of samples
Characteristic Category Mean counts (CFU/ml) SE Mean StDev Range (CFU/ml) Correlation coefficient (P value)
Condition of well aperture Covered 1.98 × 103 186 2651 0-1.1 × 104
Not covered 2.14 × 103 163 2561 0- 1.4 × 104
Height of well casing above the ground (m) 0.00 1. 99 × 103 536 2783 2.0 × 101- 1.10 × 104 +0.041 (0.205)
0.1-0.59 1.99 × 103 184 2654 0-1.40 × 104
≥0.60 2.15 × 103 172 2534 0-1.05 × 104 −0.154 (0.000)
Distance between well and sanitary structure (m) 1.0-10.00 2.24 × 103 148 2658 0- 1.40 × 104
10.1-15.00 1.59 × 103 226 2352 0-1.10 × 104
≥15.00 1.73 × 103 642 2723 6.0 × 101 – 9.0 × 104
State of well New 2.07 × 103 473 2458 2.0 × 101- 8.9 × 103
Fairly old 1.58 × 103 189 2200 0-1.10 × 104
Old 2.31 × 103 164 2769 0-1.40 × 104
Presence of molded casing No 2.03 × 103 262 2483 2.0 × 101- 1.40 × 104
Yes 2.09 × 103 140 2641 0-1.10 × 103

Well aperture (χ2 = 0.888, df = 1, P = 0.346). Well height (χ2 = 0.658, df = 2, P = 0.720). Distance well-pit latrine (χ2 = 0.568, df = 2, P = 0.753). State of well (χ2 = 3.105, df = 2, P = 0.212). Well casing (χ2 = 2.579, df = 1, P = 0.108).

Akoachere et al.

Akoachere et al. BMC Public Health 2013 13:692   doi:10.1186/1471-2458-13-692

Open Data