Table 4.

Maternal in-hospital mortality, regardless of race among all Black and White patients, during the delivery hospitalization by teaching and Black-serving status (n=5,679,044 deliveries)

Hospital Type	Deliveries, column%	Deliveries among Black patients, column %	Deliveries among White patients, column %	Deaths n (ratio per 100,000 live births)	Black-serving vs. non-Black-serving Unadjusted (Observed) RR of death (95% CI)	Expected* RR (95% CI)	Black-serving vs. non-Black-serving Adjusted RR^ of death (95% CI)
Teaching
Non-Black-serving	5.6	3.3	6.0	25 (7.9)	ref	ref	ref
Black-serving	34.5	23.9	8.3	54 (9.0)	1.14 (0.71–1.83)	1.05 (0.98–1.13)	1.09 (0.71–1.75)
Non-teaching
Non-Black-serving	71.2	19.4	66.7	140 (4.1)	ref	ref	ref
Black-serving	28.8	53.4	19.1	111 (8.1)	1.96 (1.53–2.52)	1.34 (1.25–1.44)	1.47 (1.15–1.87)

^*Expected calculated using predictions from logistic regression model to predict death that included maternal age, insurance, gestational age at delivery, multiple gestations, mode of delivery, rurality, year, pregnancy comorbid conditions (chronic hypertension, chronic cardiac disease, diabetes, chronic renal disease), and state of delivery (CA, MO, PA)

^{^}Adjusted RR calculated as (Black-serving O:E)/(Non-Black-serving O:E), O:E, observed/expected