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Table 7 Prevalence of onchocerciasis nodules and OV16 antibodies among adult (≥ 20 years) males in suburban and rural villages

From: High prevalence of epilepsy in two rural onchocerciasis endemic villages in the Mahenge area, Tanzania, after 20 years of community directed treatment with ivermectin

Village/Strata

Examined for nodules (REMO)

Nodules

OV16 tests

 

N

Median age (IQR)

No. positive (%)

Number screened (%)

Positive percentage (95% CI)

χ2-test (P-value)δ

Village

 Matumbala

35

38.5 (28.0–47.0)

1 (2.9)

34 (97.1)

32.3 (15.8–48.9)

 

 Vigoi

54

43.8 (33.5–55.5)

1 (1.9)

53 (98.1)

62.3 (48.8–75.8)

7.41 (0.006)

 Mdindo

54

43.2 (30.8–53.5)

3 (5.6)

50 (92.6)

80.0 (68.5–91.5)

19.26 ( < 0.001)

 Msogezi

72

35.7 (28.6–50.2)

0 (0)

69 (95.8)

73.9 (63.3–84.5)

16.42 (< 0.001)

Strata

 Suburban

126

42.5 (31.9–53.6)

2 (1.6)

119 (94.4)

50.6 (39.9–61.3)

 

 Rural

89

39.0 (28.9–51.9)

3 (3.4)

87 (97.6)

76.5 (68.7–84.2)

14.9 (< 0.001)

Total/Average

215

40.2 (29.6–52.9)

5 (2.3)

206 (95.8)

65.5 (59.0–72.1)

 
  1. δMatumbala village was considered the baseline in all comparisons; REMO: Rapid epidemiological monitoring of onchocerciasis; IQR Inter quartile range