From: Maternal Asian ethnicity and obstetric intrapartum intervention: a retrospective cohort study
 | Prevalence of intervention | Crude odds ratio (95% CI) | P value | Adjusted odds ratio (95% CI) | P value |
---|---|---|---|---|---|
Spontaneous vaginal birth | |||||
 Australia/NZ | 10,212(59.4%) | 1 | - | 1 | - |
 South Asia | 4075(51.8%) | 0.73(0.69, 0.77)a | <0.001 | 0.50(0.46,0.54)b | <0.001 |
 South East-East Asia | 4249(61.8%) | 1.10(1.04,1.17)a | 0.001 | 0.76(0.69,0.84)b | <0.001 |
Operative vaginal birth | |||||
 Australia/NZ | 2235(13%) | 1 | - | 1 | - |
 South Asia | 1327(16.9%) | 1.36(1.26,1.50)a | <0.001 | 1.43(1.3,1.57)b | <0.001 |
 South East-East Asia | 1004(14.6%) | 1.14(1.05,1.24)a | <0.001 | 1.22(1.11,1.35)b | <0.001 |
Intrapartum cesarean | |||||
 Australia/NZ | 2325(13.5%) | 1 | - | 1 | - |
 South Asia | 1460 (18.5%) | 1.45(1.31,1.51)c | <0.001 | 1.67(1.53,1.82)d | <0.001 |
 South East-East Asia | 913(13.3%) | 0.95(0.87,1.03)c | 0.22 | 1.16(1.04,1.26)d | 0.007 |
Planned cesarean | |||||
 Australia/NZ | 2383(13.9%) | 1 | - | 1 | - |
 South Asia | 1000(12.7%) | 0.90(0.83,0.98)e | 0.01 | 1.02(0.91,1.14)f | 0.73 |
 South East-East Asia | 703(10.2%) | 0.71(0.65,0.77)e | <0.001 | 0.87(0.76,0.98)f | 0.02 |