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Table 1 Prevalence and crude odds ratio for having a positive serology for Hepatitis A virus in children from 12 to 59 months old. Assis Brasil, 2011

From: Socioeconomic inequities and hepatitis A virus infection in Western Brazilian Amazonian children: spatial distribution and associated factors

N = 312 Number % hepatitis A unOR CI 95 % P value***
Block 1:Socio-economic      
Receipt of benefits      
 No 208 13.94 % 1   
 Yes 104 21.15 % 1.66 0.9–3.06 0.107
Possession of household      
 Owned 203 12.80 % 1   
 Not owned 109 22.93 % 2.03 1.1–3.72 0.023
Years of maternal schooling      
 More than four years 191 12.82 % 1   
 Four or less years 121 21.48 % 1.82 0.99–3.33 0.053
Household stipend      
 More than ½ minimum wage 237 15.18 % 1   
 Less or equal to ½ minimum wage 54 20.37 % 1.43 0.67–3.03 0.352
Block 2: Domestic and peri-domestic environment      
Type of household construction      
 Brick walls 34 20.58 % 1   
 Wooden walls or another material 278 15.82 % 0.73 0.3–1.77 0.48
House floor      
 Cement. brick ceramic tile 80 10.00 % 1   
 Wood or land 232 18.53 % 2.05 0.92–4.57 0.08
Is the household located in a street?      
 Yes 266 12.40 % 1   
 No 46 39.13 % 4.54 2.26–9.1 <0.001
Susceptibility to flooding during rain      
 No 170 12.35 % 1   
 Yes 141 20.56 % 1.84 1.3–39.0 0.052
Presence of electric power      
 Yes 299 15.05 % 1   
 No 13 46.15 % 4.84 1.55–15.06 0.007
Number of person per room 312 16.66 % 1.23 1.11–1.36 <0.001
Block 3: Sanitary conditions and water quality      
Type of toilet      
 Flushed toilet 170 12.35 % 1   
 Latrine or no toilet 142 21.12 % 1.9 1.03–3.49 0.039
Presence of open sewage near house      
 No 169 14.79 % 1   
 Yes 143 18.18 % 1.28 0.7–2.33 0.421
Public waste collection      
 No 25 20.00 % 1   
 Yes 287 16.02 % 0.76 0.27–2.14 0.607
Water supply from public system      
 No 35 0.02 % 1   
 Yes 277 22.02 % 7.49 1.00–56.00 0.05
Water supply from wells      
 No 270 17.77 % 1   
 Yes 42 7.14 % 0.36 0.11–1.2 0.095
Piped water supply inside the household      
 Yes 195 12.82 % 1   
 No 117 22.22 % 1.94 1.06–3.56 0.031
Mineral water for drinking      
 No 184 15.76 %    
 Yes 128 17.18 % 1.11 0.60–2.03 0.738
Treatment of drinking water with chlorine      
 No 278 15.82 % 1   
 Yes 34 20.58 % 1.38 0.57–3.36 0.48
Block 4 – Characteristics of the child      
Gender      
 Male 157 13.37 % 1   
 Female 155 19.35 % 1.55 0.85–2.86 0.155
Age (in months)      
 12 to 23 71 11.26 % 1   
 24 to 35 82 14.63 % 1.35 0.52–3.52 0.539
 35 to 48 72 13.88 % 1.27 0.47–3.43 0.637
 48 to 59 87 24.13 % 2.51 1.03–6.07 0.042
Ethnicity      
 Non-indigenous 263 12.54 % 1   
 Indigenous 45 40.00 % 4.73 2.35–9.51 <0.001
  1. *** Wald test