Table 4.

Odds ratios for c-section and for PPA/PPD, as a function of population risk subgroups.

Health outcome	Unadjusted odds ratio (95% Confidence interval)	Adjusted odds ratio* (95% Confidence interval)	PSM odds ratio (95% Confidence interval)
Cesarean Delivery
Race: Black vs· WHITE	0·93 (0·58–0·36)	0·98 (0·88–1·58)	0·66 (0·36–1·21)
Pregnancy complication: Yes vs· No	0·94 (0·67–1·21)	0·96 (0·57–1·35)	0·42 (0·24–0·76)
Diagnosis of postpartum anxiety or postpartum depression
Race: Black vs· White	0·80 (0·26–1·33)	0·79 (0·26–1·33)	0·50 (0·24–1·04)
Pregnancy complication: Yes vs· No	0·95 (0·28–1·62)	0·97 (0·28–1·66)	0·46 (0·23–0·92)

PSM models were matched on maternal age, race, state of residence, socioeconomic status quartile, and delivery hospital type (teaching or non-teaching). PSM models were additionally adjusted for maternal comorbidity index (MCI). Logistic regressions were adjusted for race, SES index score, hospital type (teaching hospital or not teaching hospital), and MCI. Conditions are defined using ICD-9, ICD-10, and HCPCS codes and are included in the Appendix.