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Table 2 The prevalence, intensity and reduction of S. haematobium infections in children from three schools in Al Salamania in Central Sudan at baseline and 1 year post treatment, relative to gender

From: Schistosoma haematobium infections among schoolchildren in central Sudan one year after treatment with praziquantel

Variable

Total

Boys

Girls

P

Base line

    

Children examined, n (%)

562 (100)

309 (55.0)

253 (45.0)

 

Prevalence,% (95% CI)

51.4(47.3─55.5)

53.7(48.1─59.2)

48.6(42.5─45.8)

0.228

Intensity, (95% CI)

87.7(87.2─88.1)

101.4(100.6─102.1)

74.0 (72.2─74.8)

<0.001

One year post treatment

    

Children examined, n (%)

420 (100)

237(56.4)

183 (43.6)

 

Prevalence,% (95% CI)

8.6(6.2─11.5)

8.9 (5.7─13.0)

8.2 (4.8─12.8)

0.809

Intensity, (95% CI)

72.8(71.5─74.1)

99.5(97.7─101.3)

46.2(44.3─48.1)

<0.001

Reduction in the prevalence,% (95% CI)

83.3 (73.0─89.7)

83.4(73.4─89.7)

83.1(73.5─90.3)

0.967

Reduction in the intensity, (95% CI)

17.0 (10.8─24.0)

1.9(0.6─3.5)

37.6(28.0─47.1)

0.001