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Table 2 Prevalence of multiple species helminth infections among 268 children from two schools in Yunnan province, P.R. China, stratified by school, sex and age.

From: Self-rated quality of life and school performance in relation to helminth infections: case study from Yunnan, People's Republic of China

   No infection Single species infection Dual species infection Triple species infection
  Obs. N % N % N % N %
All 268 68 25.4 60 22.4 59 22.0 81 30.2
School          
   Bulangshan 170 15 8.8 24 14.1 51 30.0 80 47.1
   Pu'er 98 53 54.1 36 33.7 8 8.2 1 1.0
Sex          
   Female 123 40 32.5 28 22.8 29 23.6 26 21.1
   Male 145 28 19.3 32 22.1 30 20.7 55 37.9
Age (years)          
   12-13 101 34 33.7 26 25.7 13 12.9 28 27.7
   13-14 108 31 28.7 26 24.1 25 23.1 26 24.1
   > 14 59 3 5.1 8 13.5 21 35.6 27 45.8
  1. Results obtained from duplicate Kato-Katz thick smears and a single FLOTAC test. All results were significant according to χ2 or Fisher's test, as appropriate (P < 0.01).