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Table 3 Adjusted prevalence of modern contraceptive use and RII (95% CI) by each measure of SEP

From: Comparison of physical, public and human assets as determinants of socioeconomic inequalities in contraceptive use in Colombia - moving beyond the household wealth index

   Prevalence (%) RII (95% CI) Difference
   Urban Rural Urban Rural p-value
Current non-use of contraception among women in
union (married/cohabiting) and single sexually active
23.7 28.2 N = 15147 N = 4876 <0.001
Household wealth (HWI) Richest 19.8 13.7    
  Fourth 21.0 23.7    
  Middle 23.7 17.5 2.84 (2.41-3.35) 4.6 (3.06-6.79) <0.001
  Second 28.0 23.4    
  Poorest 30.4 33.5    
Physical capital Richest 21.0 16.9    
  Fourth 21.1 20.3    
  Middle 22.5 19.6 2.64 (2.26-3.07) 3.96 (2.82-5.55) <0.001
  Second 28.0 26.7    
  Poorest 29.6 33.9    
Public capital Richest a a    
  Fourth 22.3 17.7    
  Third 22.3 21.2 1.84 (1.56-2.17) 2.01 (1.35-2.97) 0.09
  Second 26.2 26.9    
  Poorest 30.8 29.7    
Human capital University 23.0 20.8    
  Secondary 22.9 24.1    
  Primary 25.3 28.6 1.44 (1.24-1.67) 1.64 (1.14-2.37) <0.001
  None 25.2 51.4    
Never use of contraception among ever-sexually active women 8.9 17.2 N = 25231 N = 7552 <0.001
Household wealth (HWI) Richest 4.9 3.8    
  Fourth 7.3 7.2    
  Middle 9.0 8.0 7.14 (5.94-8.59) 23.5 [14.6-38.1] <0.001
  Second 10.9 12.5    
  Poorest 18.5 22.8    
Physical capital Richest 5.3 5.3    
  Fourth 7.4 6.9    
  Middle 8.6 9.0 5.81 (4.89-6.91) 19.63 [13.13-29.35] <0.001
  Second 10.6 14.5    
  Poorest 15.2 24.1    
Public capital Richest a a    
  Fourth 8.3 7.3    
  Third 7.3 9.1 2.47 (2.04-2.99) 7.72 [4.93-12.10] <0.001
  Second 10.6 12.3    
  Poorest 15.4 20.2    
Human capital University 6.3 9.1    
  Secondary 8.3 12.0    
  Primary 12.3 19.7 4.83 (4.04-5.78) 7.98 (5.27-12.10) <0.001
  None 22.3 43.8    
  1. a. Empty quintile []. Large confidence intervals possibly due to uneven distribution of women between quintile groups see Table S3 additional file 1.
  2. Note: Prevalence and RII adjusted for age in years, marital status and number of children ever born by place of residence.