Table 3 Factors identified by nonlinear decomposition analysis that contributed to the racial gaps in the caesarean rates
| Â | Black - NH | Asian - NH | Hispanic | Native American - NH |
|---|---|---|---|---|
% | % | % | % | |
Caesarean Rate Among White Women | 27.7 | 27.7 | 27.7 | 27.7 |
Caesarean Rate Among Minority Group | 28.9 | 30.6 | 24.5 | 23.7 |
Gap in Caesarean Rate | −1.2 | −2.9 | 3.2 | 4.0 |
Estimated Effects of Explanatory Variablea | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) |
Maternal Age | 3.6 (3.4 to 3.9) | −2.8 (−2.9 to −2.6) | 3.5 (3.3 to 3.8) | 5.2 (4.8 to 5.6) |
Marital Status | −0.2 (−0.6 to 0.1) | 0.1 (0 to 0.3) | −0.2 (−0.4 to 0.1) | −0.3 (−0.7 to 0.1) |
County of Residence | 0.7 (0.4 to 0.9) | 0.6 (0.4 to 0.8) | 0.0 (0.0 to 0.0) | −0.4 (− 0.6 to − 0.3) |
Education | −1.1 (− 1.4 to − 0.7) | 0.2 (0.1 to 0.4) | −1.3 (− 1.8 to − 0.9) | −1.4 (− 1.9 to − 0.9) |
Insurance Status at Time of Birth | 0.3 (0.0 to 0.7) | 0.1 (0 to 0.1) | 0.5 (0.1 to 0.8) | 0.4 (0.0 to 0.9) |
Pre-Pregnancy BMI | −1.2 (− 1.3 to − 1.2) | 3.7 (3.5 to 3.9) | 0.3 (0.3 to 0.3) | −1.2 (− 1.3 to − 1.1) |
Tobacco Use During Pregnancy | 0.1 (0.1 to 0.2) | 0.2 (0.1 to 0.4) | 0.2 (0.1 to 0.3) | −0.2 (− 0.3 to − 0.1) |