Skip to main content

Advertisement

Table 6 Factors associated with obstetric complications

From: Socioeconomic status can affect pregnancy outcomes and complications, even with a universal healthcare system

Variables Preterm delivery Preeclampsia Gestational diabetes mellitus Perineal laceration Obstetric hemorrhage
aOR (95% CI) P value aOR (95% CI) P value aOR (95% CI) P value aOR (95% CI) P value aOR (95% CI) P value
Age (year)
 20-34 1.00   1.00   1.00   1.00   1.00  
  ≥ 35 1.16(1.08-1.24) <0.001 1.49(1.36-1.64) <0.001 1.99(1.82-2.17) <0.001 0.71(0.65-0.77) <0.001 1.06(1.02-1.11) 0.005
Area
 Metropolitan 1.00   1.00   1.00   1.00   1.00  
 City 0.95(0.90-1.01) 0.123 0.97(0.89-1.06) 0.488 0.79(0.73-0.86) <0.001 1.33(1.26-1.41) <0.001 0.80(0.77-0.83) <0.001
 Rural 1.08(0.97-1.20) 0.157 1.29(1.11-1.48) 0.001 0.86(0.73-1.01) 0.058 1.29(1.17-1.43) <0.001 1.44(1.37-1.53) <0.001
Type of insurance
 National Health Insurance 1.00   1.00   1.00   1.00   1.00  
 Medical aid 1.35(1.04-1.74) 0.022 1.98(1.46-2.67) <0.001 1.43(0.99-2.06) 0.055 0.66(0.45-0.97) 0.033 1.28(1.08-1.52) 0.005
Charlson comorbidity index
 0 1.00   1.00   1.00   1.00   1.00  
  ≥ 1 1.41(1.13-1.76) 0.002 1.99(1.53-2.59) <0.001 9.22(8.08-10.52) <0.001 0.59(0.43-0.81) 0.001 1.19(1.04-1.37) 0.013
Adequacy of prenatal care
 Adequate (≥ 9) 1.00   1.00   1.00   1.00   1.00  
 Intermediate (5–8) 1.34(1.26-1.43) <0.001 1.03(0.93-1.13) 0.593 0.88(0.80-0.96) 0.004 0.69(0.65-0.74) <0.001 0.73(0.70-0.76) <0.001
 Inadequate (≤ 4) 2.16(1.99-2.33) <0.001 1.73(1.55-1.94) <0.001 0.83(0.72-0.95) 0.009 1.01(0.92-1.09) 0.896 0.86(0.81-0.91) <0.001
Cesarean section
 Yes        1.00   1.00  
 No (vaginal delivery)        1871.61(467.96-7485.59) <0.001 2.02(1.94-2.10) <0.001
  1. aOR adjusted odds ratio, CI confidence interval