Table 3

Relationship between well characteristics and heterotrophic bacterial load of samples
Well characteristic Category Mean counts (CFU/ml) SE Mean StDev Range (CFU/ml) Correlation coefficient (P value)
Condition of well aperture Covered 3.73 × 103 298 4253 0-2.5 × 104
Not covered 4.13 × 103 311 4876 0- 4.25 × 104
Height of well casing above the ground (m) 0.00 4.67 × 103 933 4847 0-1.77 × 104 −0.003 (0.921)
0.1-0.59 3.80 × 103 335 4819 0-4.25 × 104
≥0.60 4.00 × 103 297 4367 0-2.50 × 104
Distance between well and sanitary structure (m) 1.0-10.00 4.13 × 103 266 4784 0- 4.25 × 104 −0.119 (0.000)
10.1-15.00 3.61 × 103 402 4182 0-1.77 × 104
≥15.00 2.64 × 103 801 3399 2.6 × 104 - 1.05 × 104
State of well New 3.56 × 103 808 4199 1.34 × 104
Fairly old 3.38 × 103 358 4161 4.0 × 101-2.5 × 104
Old 4.27 × 103 286 4834 4.25 × 104
Presence of molded casing No 4.08 × 103 427 4052 0-4.25 × 104
Yes 3.932 × 103 251 4750 2.50 × 104

Well aperture (χ2 = 0.400, df = 1, P = 0.527). Well height (χ2 = 0.868, df = 2, P = 0.648).

Distance well-pit latrine (χ2 = 0.750, df = 2, P = 0.687). State of well (χ2 = 3.486, df = 2, P = 0.175). Well casing (χ2 = 0.697, df = 1, P = 0.697).

Akoachere et al.

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

Open Data