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Table 1 Study population baseline socio-demographic characteristics and distribution of schistosomiasis cases. The proportion of schistosomiasis cases is distributed at the end of phase 1 and at the end of phase 2

From: Schistosoma haematobium infection morbidity, praziquantel effectiveness and reinfection rate among children and young adults in Gabon

  Study population characteristics at baseline Schistosomiasis cases P-valuea
End of phase 1 End of phase 2
N % 95% CI (%) n/N % n/N %
Overall 328 103/258 39.9 33/188 17.5 < 0.0001
Age
 6–8 69 21.0 16.7–25.8 16/61 26.2 10/44 22.7 0.86
 9–11 102 31.1 26.1–36.4 34/80 42.5 13/66 19.7 0.006
 12–14 81 24.7 19.8–29.4 32/69 46.4 7/50 14.0 0.0004
 15–30 76 23.2 18.7–28.1 21/48 43.8 3/28 10.7 0.006
Gender
 Female 163 49.7 44.1–55.2 48/130 36.9 16/97 16.5 0.001
 Male 165 50.3 44.7–55.8 55/128 43.0 17/91 18.7 0.0003
Location
 Bindo 69 21.0 16.7–25.8 6/52 11.5 1/39 2.6
 Zilé-PK 259 79.0 74.1–83.2 97/206 47.1 32/149 21.5 < 0.0001
  1. aChi-square test to compare proportion of schistosomiasis cases between end of phase 1 and end of phase 2
  2. Abbreviations: n, number of schistosomiasis cases; N, number of participants; CI, confidence interval