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Table 1 Univariate analysis of association between socioeconomic status and family environment variables with oral health- related quality of life in the overall median scores of CPQ11-14 (n = 515).

From: The influence of oral health conditions, socioeconomic status and home environment factors on schoolchildren's self-perception of quality of life

  Variable N CPQ11-14 Prevalence ratio (PR)
    Scores > median PR crude CI - 95% p
    N %    
Gender Female 290 155 53.4 1.21 1.01-1.46 0.0208
  Male 225 99 44.0 1.00   
School type Public 363 225 62.0 3.64 2.60-5.08 < 0.0001
  Private 152 29 19.1 1.00   
Monthly family income ≤ 3 minimum wages 242 143 59.1 4.33 2.04-9.18 < 0.0001
  > 3 minimum wages 44 6 13.6 1.00   
Father's education ≤ 8 years 124 74 59.7 1.53 1.16-2.02 0.0012
  > 8 years 108 42 38.9 1.00   
Mother's education ≤ 8 years 141 94 66.7 1.82 1.42-2.33 < 0.0001
  > 8 years 142 52 36.6 1.00   
Children lives with both biological parents No 193 116 60.1 1.40 1.18-1.66 0.0001
  Yes 322 138 42.9 1.00   
Number of siblings 2 or more 259 157 60.6 1.60 1.33-1.92 < 0.0001
  < 2 256 97 37.9 1.00   
Household overcrowding More 1 person/room 76 50 65.8 1.42 1.17-1.71 0.0014
  ≤ 1 person/room 439 204 46.5 1.00   
Cigarettes, alcohol and drug use Yes 229 129 56.3 1.53 1.27-1.86 < 0.0001
  No 286 105 43.7 1.00   
Parents' perception of children's oral health fair/poor 102 72 70.6 1.69 1.37-2.08 < 0.0001
  excellent/very good/good 184 77 41.8 1.00   
Children's perception of their general health fair/poor 56 42 75.0 1.62 1.36-1.95 < 0.0001
  excellent/very good/good 459 212 46.2 1.00   
Children's perception of their oral health fair/poor 166 124 74.7 2.01 1.70-2.36 < 0.0001
  excellent/very good/good 349 130 37.2 1.00   
General diseases Yes 202 114 54.4 1.26 1.06-1.50 0.0061
  No 313 140 44.7 1.00