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Table 2 Associations between intensity of infection and sex, age, and altitude, obtained using the chi-square test

From: Using the hierarchical ordinal regression model to analyse the intensity of urinary schistosomiasis infection in school children in Lusaka Province, Zambia

  Intensity of infection (N and %)
  No infection Light infection Moderate/heavy infection sex χ 2 (P-value)
Variables
Age
 6–9 years 953 (89.1) 93 (8.7) 23 (2.2) 4.1 (0.13)
 10–15 years 765 (91.7) 52 (6.2) 17 (2.0)  
Sex
 Female 871 (91.3) 66 (6.9) 17 (1.8) 2.5 (0.29)
 Male 843 (89.2) 79 (8.4) 23 (2.4)  
Altitude
 Plateau 570 (85.3) 67 (10.0) 31 (4.6) 42.7 (0.001)
 Valley 1 156 (93.0) 78 (6.3) 9 (0.7)