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Table 5 Multivariate analysis of the variables associated with the frequency of genito-urinary schistosomiasis among respondents

From: Prevalence and intensity of genito-urinary schistosomiasis and associated risk factors among junior high school students in two local government areas around Zobe Dam in Katsina State, Nigeria

Variables Subtotal Positive (%) Negative (%) COR (95 % CI) AOR (95 % CI)
Sex
 Boys 401 140 (34.91) 261 (65.09) 6.84 (4.32–11.17) 7.25 (4.33–12.71)
 Girls 317 23 (7.26) 294 (92.74) 1 1
χ 2 test     77.065
P-value   < 0.0001
Age (years)
 10–12 126 22 (17.46) 104 (82.54) 1 1
 13–15 485 107 (22.06) 378 (77.94) 1.34 (0.81–2.26)
 16–18 94 29 (30.85) 65 (69.15) 2.11 (1.11–4.01) 4.43 (2.62–7.49)
 19–21 11 4 (36.36) 7 (63.64) 2.70 (0.64–10.08)
 22–24 2 1 (50) 1 (50) 4.73 (0.12–185.89)
χ 2 test   0.642
P-value   0.4231
Address
 Dutsin-Ma 398 90 (22.61) 308 (77.39) 1 1
 Safana 320 73 (22.81) 247 (77.19) 1.01 (0.71–1.44)
χ 2 test   0.004
P-value   0.9495
Altitude
 500530 m 312 55 (17.63) 257 (82.37) 1.69 (1.18–2.45) 1.27 (0.87–1.88)
 531–560 m 406 108 (26.61) 298 (73.39) 1 1
χ 2 test   8.083
P-value   0.0045
Fathers’ occupation
 Civil servants 249 43 (17.27) 206 (82.73) 1 1
 Farmers 115 33 (28.69) 82 (71.3) 1.93 (1.14–3.24) 2.08 (1.2–3.59)
 Other brown collar jobs 351 87 (24.79) 264 (75.21) 1.58 (1.05–2.39) 1.42 (0.92–2.23)
 Late (Dead) 2 0 (0) 2 (100) 0
 Retiree 1 0 (0) 1 (100) 0
χ 2 test   0.0001  
P-value   0.9921
Mothers’ occupation
 Civil servants 76 7 (9.21) 69 (90.79) 1
 Farmers 2 0 (0) 2 (100) 0
 Other brown collar jobs 390 96 (24.62) 294 (75.38) 3.22 (1.49–7.82)
 Housewives 250 60 (24) 190 (76) 3.11 (1.41–7.68)
χ 2 test   6.359
P-value   0.0117
Grand total 718 163 (22.7) 555 (77.3)   
  1. Abbreviations: COR Crude (unadjusted) odds ratio, AOR adjusted odds ratio (indicated only for values with P ≤ 0.05), CI Confidence interval