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Table 2 Relative index of inequality (95% CI) for emergency Caesarean sections for social class (SC) and area deprivation (AD), Scotland 1980-2000

From: The influence of both individual and area based socioeconomic status on temporal trends in Caesarean sections in Scotland 1980-2000

  1980-81 1990-91 1999-2000
  Model SC Model AD Model SC+AD Model SC Model AD Model SC+AD Model SC Model AD Model SC+AD
  RII (95%CI) RII (95%CI) RII (95%CI) RII (95%CI) RII (95%CI) RII (95%CI) RII (95%CI) RII (95%CI) RII (95%CI)
All Births         
Social Class 1.16 (1.06-1.28)   1.14 (1.04-1.25) 1.15 (1.05-1.25)   1.13 (1.04-1.23) 1.03 (0.94-1.13)   1.02 (0.93-1.12)
Area Deprivation   1.21 (1.08-1.35) 1.18 (1.05-1.32)   1.16 (1.05-1.28) 1.13 (1.02-1.26)   1.03 (0.93-1.13) 1.02 (0.93-1.13)
No previous Caesarean section       
Social Class 1.18 (1.06-1.31)   1.15 (1.03-1.28) 1.18 (1.07-1.29)   1.15 (1.05-1.26) 1.04 (0.94-1.15)   1.04 (0.93-1.15)
Area Deprivation   1.26 (1.11-1.42) 1.23 (1.08-1.39)   1.20 (1.08-1.34) 1.17 (1.05-1.31)   1.03 (0.92-1.14) 1.02 (0.91-1.14)
Previous Caesarean section        
Social Class 1.25 (0.97-1.61)   1.24 (0.96-1.61) 1.03 (0.82-1.30)   1.03 (0.81-1.30) 0.90 (0.70-1.17)   0.90 (0.70-1.17)
Area Deprivation   1.07 (0.80-1.43) 1.02 (0.76-1.37)   1.01 (0.78-1.31) 1.00 (0.77-1.30)   0.98 (0.75-1.28) 1.00 (0.76-1.32)
  1. All models adjusted for maternal age, maternal height, parity, gestational age and marital status
  2. Model SC (social class) - additionally adjusts only for social class
  3. Model AD (area deprivation) - additionally adjusts only for area deprivation
  4. Model SC+AD - additionally adjusts for both social class and area deprivation
  5. The odds ratios for social class and area deprivation are for the relative index of inequality (RII) calculated for these variables. The odds ratio compares the bottom of the social hierarchy to the top; the larger the RII the larger the inequality.