Factors | % (n) positive | Unadjusted OR | 95% CI | P value$ | #Adjusted OR | 95% CI | P value |
---|---|---|---|---|---|---|---|
Health area | |||||||
 Likomba | 30.3 (71) | 1.4 | 0.9–2.1 |  < 0.05 | 1.3 | 0.7–2.3 | 0.44 |
 Holforth_Likomba | 38.9 (117) | 2.1 | 1.4–3.0 |  | 1.2 | 0.7–2.1 | 0.40 |
 Holforth | 23.5 (57) | REF |  |  | REF |  |  |
Sex | Â | Â | Â | Â | Â | Â | Â |
 Male | 32.9 (138) | 1.07 | 0.9–1.2 | 0.35 | 1.2 | 0.8–1.9 | 0.33 |
 Female | 29.8 (107) | REF |  |  | REF |  |  |
Age group (years) | |||||||
 5–14 | 37.7 (156) | 3.8 | 1.8–4.5 |  < 0.05 | 3.7 | 1.1–12.2 | 0.03 |
 15–24 | 31.7 (39) | 2.18 | 1.2–3.8 |  | 2.5 | 0.8–8.2 | 0.13 |
 25–34 | 25.8 (24) | 1.63 | 0.9–3.1 |  | 2.6 | 0.9–7.3 | 0.07 |
 ≥ 35 | 17.6 (26) | REF |  |  | REF |  |  |
Level of education | |||||||
 Secondary | 35.4 (126) | 1.2 | 1.0–1.4 | 0.03 | 2.0 | 1.2–3.2 | 0.005 |
 Primary | 28.2 (119) | REF |  |  | REF |  |  |
Occupation | |||||||
 Housewife | 30.0 (12) | 2.0 | 0.8–5.1 |  < 0.05 | 1.2 | 0.3–6.2 | 0.78 |
 CDC worker | 18.5 (17) | 1.0 | 0.4–2.4 |  | 0.9 | 0.2–3.1 | 0.83 |
 Pupil/student | 36.5 (184) | 2.7 | 1.3–5.2 |  | 1.0 | 0.3–3.7 | 0.94 |
 Business/Civil servant | 26.2 (21) | 1.6 | 0.7–3.7 |  | 2.5 | 0.7–8.4 | 0.15 |
 Farmer | 17.7 (11) | REF |  |  | REF |  |  |
Source of pipe-borne water | |||||||
 Household pipe-borne water | 34.7 (195) | 1.0 | 0.9–1.1 | 0.32 | NA |  | NA |
 Communal pipe-borne water | 29.8 (34) | REF |  |  |  |  |  |
Degree of water contact | |||||||
 Degree II (≥ 100) | 64.2 (145) | 2.0 | 1.7–2.5 |  < 0.05 | 5.2 | (3.4–8.1) |  < 0.05 |
 Degree I (2–99) | 26.4 (55) | REF |  |  | REF |  |  |