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. 2023 Jan 11;61(5):258–267. doi: 10.1097/MLR.0000000000001819

TABLE 2.

Multiply Adjusted Associations Between Individual Covariates and Severe Maternal Mortality With and Without Blood Transfusion During Delivery Hospitalization by Race and Ethnicity, Georgia, 2009–2020

Delivery hospitalization SMM Delivery hospitalization SMM, excluding blood transfusion
Non-Hispanic White Non-Hispanic Black Non-Hispanic White Non-Hispanic Black
Characteristic SMM Rate* Adjusted RR SMM Rate* Adjusted RR SMM Rate* Adjusted RR SMM Rate* Adjusted RR
Race-specific rate 133.5 234.7 57.3 89.6
Maternal age
 <17 250.5 1.3 (1.0, 1.7) 257.0 1.2 (1.0, 1.4) 87.7 1.2 (0.7, 1.8) 74.1 0.8 (0.5, 1.1)
 17–19 166.0 1.0 (0.9, 1.2) 238.4 1.1 (1.0, 1.2) 51.0 0.8 (0.6, 0.9) 89.7 1.0 (0.9, 1.2)
 20–24 136.5 1.0 (0.9, 1.1) 214.1 1.0 (0.9, 1.1) 50.7 0.9 (0.8, 1.0) 74.1 1.0 (0.9, 1.1)
 25–29 120.8 Ref 213.7 Ref 53.2 Ref 74.9 Ref
 30–34 121.8 1.1 (1.0, 1.1) 238.5 1.1 (1.0, 1.2) 55.8 1.1 (1.0, 1.2) 98.9 1.3 (1.2, 1.5)
 35–39 147.1 1.3 (1.2, 1.4) 301.0 1.3 (1.2, 1.4) 71.6 1.4 (1.3, 1.6) 134.3 1.7 (1.5, 1.9)
 >=40 218.1 1.8 (1.6, 2.1) 397.6 1.6 (1.4, 1.8) 115.4 2.3 (1.9, 2.8) 199.8 2.3 (1.9, 2.8)
Marital status
 Married 124.2 Ref 215.4 Ref 55.8 Ref 95.2 Ref
 Unmarried 156.1 1.0 (1.0, 1.1) 240.4 1.1 (1, 1.2) 60.9 1.0 (0.9, 1.1) 87.0 1.0 (0.9, 1.1)
Insurance payor
 Private 120.9 Ref 203.3 Ref 55.2 Ref 86.8 Ref
 Medicaid 155.8 1.2 (1.1, 1.3) 242.6 1.1 (1.1, 1.2) 60.1 1.1 (0.9, 1.2) 85.8 1.1 (1.0, 1.2)
 Medicare 156.6 1.2 (1.0, 1.4) 409.7 1.7 (1.5, 2.0) 80.8 1.4 (1.0, 1.7) 227.4 2.4 (1.9, 2.9)
 Self pay 152.2 1.1 (0.8, 1.4) 343.1 1.4 (1.2, 1.7) 38.9 0.6 (0.4, 1.0) 139.4 1.5 (1.1, 1.8)
 Other payors 117.8 1.0 (0.9, 1.1) 200.7 1.0 (0.9, 1.1) 59.1 1.1 (0.9, 1.2) 95.1 1.2 (1.0, 1.4)
Education
 Less than high school 166.3 1.3 (1.0, 1.6) 272.4 1.2 (1.0, 1.5) 61.4 1.2 (0.8, 1.8) 91.6 1.1 (0.8, 1.6)
 Some high school 183.1 1.4 (1.2, 1.5) 268.6 1.2 (1.1, 1.3) 62.0 1.2 (1.0, 1.4) 90.8 1.1 (1.0, 1.3)
 High school degree/GED 143.9 1.1 (1.1, 1.2) 248.3 1.2 (1.1, 1.2) 60.1 1.1 (1.0, 1.3) 91.1 1.2 (1.1, 1.3)
Some college or higher 120.1 Ref 209.0 Ref 54.4 Ref 84.8 Ref
Tobacco use during pregnancy
 No 132.1 Ref 232.0 Ref 56.8 Ref 88.8 Ref
 Yes 143.1 0.9 (0.8, 1.0) 278.3 1.0 (0.9, 1.1) 60.2 1.0 (0.9, 1.2) 94.3 0.9 (0.7, 1.1)
NCHS rural-urban
 Large central metro 117.3 Ref 288.1 Ref 43.0 Ref 96.7 Ref
 Large fringe metro 134.3 1.1 (1.0, 1.3) 235.7 0.9 (0.8, 0.9) 55.0 1.4 (1.2, 1.7) 88.1 0.9 (0.8, 1.0)
 Medium metro 101.8 0.8 (0.7, 0.9) 169.7 0.6 (0.5, 0.6) 59.6 1.4 (1.1, 1.8) 79.3 0.9 (0.7, 1.0)
 Small metro 119.7 1.0 (0.9, 1.1) 212.5 0.7 (0.7, 0.8) 51.1 1.3 (1.0, 1.6) 88.9 0.9 (0.8, 1.1)
 Micropolitan 165.4 1.3 (1.2, 1.5) 259.8 0.9 (0.8, 0.9) 72.5 1.8 (1.5, 2.3) 94.8 1.0 (0.9, 1.2)
 Noncore 160.2 1.3 (1.1, 1.5) 258.9 0.9 (0.8, 1.0) 66.2 1.7 (1.4, 2.2) 99.3 1.1 (0.9, 1.3)
Plurality
 Single 127.4 Ref 224.2 Ref 55.5 Ref 87.1 Ref
 Multiple 465.5 3.5 (3.1, 3.8) 738.3 3 (2.7, 3.3) 160.0 2.6 (2.1, 3.0) 207.1 2.0 (1.7, 2.4)
Parity
 nulliparity 149.4 Ref 222.9 Ref 62.1 Ref 97.5 Ref
 low multiparity (1–3) 117.2 0.8 (0.7, 0.8) 225.3 1.0 (1.0, 1.1) 51.9 0.8 (0.7, 0.8) 79.7 0.7 (0.7, 0.8)
 grand multipara (4+) 206.1 1.0 (0.9, 1.2) 364.0 1.3 (1.2, 1.4) 88.6 1.0 (0.8, 1.2) 120.2 0.9 (0.7, 1.0)
Prenatal care
 Prenatal Care 129.4 Ref 217.5 Ref 54.8 Ref 80.6 Ref
 Late or no prenatal care 149.3 1.1 (0.9, 1.2) 269.4 1.1 (1.1, 1.2) 57.0 1.0 (0.8, 1.3) 90.8 1.1 (1.0, 1.3)
Pre-pregnancy hypertension
 No 132.1 Ref 227.1 Ref 56.3 Ref 84.3 Ref
 Yes 214.5 1.5 (1.3, 1.8) 461.4 1.9 (1.8, 2.1) 113.3 1.8 (1.4, 2.3) 244.6 2.7 (2.3, 3.1)
Gestational hypertension
 No 121.5 Ref 210.8 Ref 50.4 Ref 75.2 Ref
 Yes 322.4 2.4 (2.2, 2.6) 578.9 2.6 (2.5, 2.8) 164.8 3.0 (2.7, 3.3) 293.9 3.7 (3.3, 4)
Gestational diabetes
 No 132.0 Ref 232.2 Ref 56.4 Ref 88.1 Ref
 Yes 165.0 1.0 (0.9, 1.2) 281.3 1.0 (0.9, 1.1) 75.1 1.0 (0.8, 1.2) 114.6 0.9 (0.8, 1.1)
*

SMM rates are events per 10,000 deliveries.

SMM indicates severe maternal morbidity.