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Table 2 Prevalence, geometric mean of eggs counts and factors associated with frequency of Schistosoma haematobium in Kaedi, southern Mauritania, 2014/2015

From: Prevalence and seasonal transmission of Schistosoma haematobium infection among school-aged children in Kaedi town, southern Mauritania

Variable Frequency of S. haematobium Bivariate Multivariate GMEC (95% CI)
  N Positive Prevalence (95% CI) cOR (95% CI) aOR (95% CI)  
Overall 2162 86 4.0 (3.24.9)    3.67 (2.804.31)
Sex
 Female 1064 54 5.1 (3.96.6) 1.00 1.00 3.50 (2.644.85)
 Male 1098 32 2.9 (2.14.1) 1.78 (1.142.78) 1.75 (1.112.77) 3.38 (2.584.76)
P-value    0.010    0.114b
Age group (in years)
 57 761 35 4.7 (3.46.5) 1.00   3.82 (2.645.87)
 811 783 26 3.2 (2.24.7) 1.40 (0.842.35)   3.74 (2.705.58)
 1215 618 25 4.0 (2.75.9) 1.14 (0.681.93)   2.80 (2.004.18)
P-value    0.436    0.522a
Education level
 No education 446 25 5.6 (3.88.2) 1.00 1.00 4.17 (2.746.95)
 Koranic school 256 11 4.3 (2.47.6) 1.32 (0.642.73) 1.82 (0.863.85) 8.93 (3.5630.87)
 Primary school 1335 45 3.4 (2.54.5) 1.70 (1.032.81) 1.79 (1.072.99) 2.91 (2.343.70)
 Secondary school 125 5 4.0 (1.79.3) 1.42 (0.533.80) 1.56 (0.574.25) 2.13 (1.002.96)
P-value    0.217    0.013a
Relationship with household head
 Child 1468 59 4.0 (3.15.2) 1.00   3.32 (2.634.26)
 Other relatives 663 27 4.1 (2.85.9) 0.98 (0.621.57)   4.17 (2.697.17)
 Without relatives 31 0 -  
P-value    0.520    0.329b
Household head’s education level
 No education 449 31 6.9 (4.79.7) 1.00   4.17 (3.096.17)
 Koranic school 515 23 4.5 (2.96.6) 0.58 (0.912.76)   5.10 (3.897.38)
 Primary school 252 21 8.3 (5.212.4) 0.81 (0.461.45)   3.70 (2.915.26)
 Secondary school 209 9 4.3 (2.08.0) 1.65 (0.773.53)   3.03 (2.006.95)
 Higher academic level 67 2 3.0 (0.410.4) 2.41 (0.5610.31)   7.38 (3.7819.49)
P-value    0.111    0.334a
Household head’s occupation
 Non-officialsc 943 61 6.5 (5.08.2) 0.48 (0.250 .93) 0.49 (0.250.95) 3.39 (2.705.41)
 Officialsd 209 14 6.7 (3.711.0) 0.46 (0.211.05) 0.46 (0.201.03) 2.97 (2.707.38)
 Unemployed 339 11 3.2 (1.65.7) 1.00 1.00 3.38 (2.137.84)
P-value    0.076    0.476a
Habitation zone
 Zone 1 775 39 5.0 (3.76.8) 0.60 (0.341.04)   4.42 (3.326.75)
 Zone 2 767 28 3.6 (2.55.2) 0.83 (0.461.51)   2.53 (1.873.63)
 Zone 3 620 19 3.0 (2.04.8) 1.00   3.70 (2.486.05)
P-value    0.148    0.048a
Season
 Wet 1026 29 2.8 (2.04.0) 1.00 1.00 4.80 (3.018.48)
 Dry 1136 57 5.0 (3.96.5) 0.55 (0.350.87) 1.71 (1.072.74) 5.10 (3.258.84)
P-value    0.009    0.081b
  1. Factors with P-value <0.05 were identified at bivariate level and were considered for the multivariate model
  2. aObtained by ANOVA
  3. bObtained by Student’s t-test
  4. cFamers, traders, craftsmen
  5. dTeachers, medical staff, administrators
  6. Abbreviations: aOR adjusted odds ratio, CI confidence interval, cOR crude odds ratio, GEMC geometric mean of egg count, N number examined