Table 5.
Disparities in non-transfusion severe maternal morbidity rates before and after adjustment for comorbidity score, California birth data, 2011–2017
| Subpopulations | Crude RR (95% CI) | Adjusted RR (95% CI) |
|---|---|---|
| Race-Ethnicity (n = 3,225,224)* | ||
| American Indian-Alaska Native | 1.28 (1.03, 1.60) | 1.00 (0.80, 1.26) |
| Asian | 1.09 (1.03, 1.14) | 1.25 (1.19, 1.31) |
| Black | 1.95 (1.84, 2.06) | 1.41 (1.34, 1.50) |
| Latinx | 1.14 (1.10, 1.18) | 1.17 (1.14, 1.22) |
| Pacific Islander | 1.68 (1.56, 1.80) | 1.31 (1.22, 1.41) |
| White | Reference | Reference |
| Multi-race | 1.28 (1.19, 1.37) | 1.08 (1.00, 1.16) |
| Other | 1.19 (0.82, 1.72) | 1.16 (0.79, 1.71) |
| Nativity (n = 3,308,355)* | ||
| Born in U.S. | Reference | Reference |
| Not born in U.S. | 1.03 (1.00, 1.06) | 1.18 (1.15, 1.21) |
| Payment method (n = 3,304,448)* | ||
| Commercial insurance | Reference | Reference |
| Government programs | 1.03 (1.00, 1.05) | 1.06 (1.03, 1.09) |
| Other | 0.74 (0.69, 0.79) | 0.91 (0.85, 0.99) |
| Educational Attainment* (n = 3,165,563) | ||
| Less than high school graduate | 1.16 (1.12, 1.21) | 1.16 (1.11, 1.21) |
| High school graduate or equivalent | 1.05 (1.01, 1.09) | 1.02 (0.98, 1.05) |
| Some college | 1.02 (0.98, 1.05) | 0.92 (0.89, 0.96) |
| College graduate or higher | Reference | Reference |
SMM, severe maternal morbidity; RR, relative risk; CI, confidence interval
*
Sample sizes differ because of each the four stratified models excluded only individuals missing that sociodemographic factor of interest.