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

TABLE 1.

Maternal Sociodemographic and Clinical Characteristics for Severe Maternal Morbidity With and Without Blood Transfusion During Delivery Hospitalization Among Georgia Resident Women Ages 12–55 Years With Delivery Hospitalizations Between 2009–2020

Including blood transfusion Excluding blood transfusion
Characteristic Delivery hospitalizations, n (%) SMM events, n (%) SMM rate Crude RR (95% CI) SMM events, n (%) SMM rate Crude RR (95% CI)
N=1,172,752 N=20,701 N=8,144
Race and ethnicity
 NH White 543,294 (46) 7,252 (35) 133.5 Ref 3,115 (38) 57.3 Ref
 NH Black 415,138 (35) 9,742 (47) 234.7 1.8 (1.7, 1.8) 3,718 (46) 89.6 1.6 (1.5, 1.6)
 NH Asian 42,041 (4) 655 (3) 155.8 1.2 (1.1, 1.3) 243 (3) 57.8 1.0 (0.9, 1.1)
 NH Other 1,764 (0) 40 (0) 226.8 1.7 (1.2, 2.3) 14 (0) 79.4 1.4 (0.8, 2.2)
 NH Multiracial 26,847 (2) 457 (2) 170.2 1.3 (1.2, 1.4) 194 (2) 72.3 1.3 (1.1, 1.5)
 Hispanic 131,050 (11) 2,334 (11) 178.1 1.3 (1.3, 1.4) 767 (9) 58.5 1.0 (0.9, 1.1)
 Missing 12,618 (1) 221 (1) 175.1 93 (1) 73.7
Maternal age
 <17 12,062 (1) 308 (1) 255.3 1.6 (1.4, 1.8) 94 (1) 77.9 1.3 (1.0, 1.6)
 17–19 82,580 (7) 1,724 (8) 208.8 1.3 (1.2, 1.4) 587 (7) 71.1 1.2 (1.1, 1.3)
 20–24 288,014 (25) 5,078 (25) 176.3 1.1 (1.1, 1.2) 1,762 (22) 61.2 1.0 (0.9, 1.1)
 25–29 334,328 (29) 5,301 (26) 158.6 Ref 2,026 (25) 60.6 Ref
 30–34 286,419 (24) 4,612 (22) 161.0 1 (1.0, 1.1) 1,957 (24) 68.3 1.1 (1.1, 1.2)
 35–39 137,472 (12) 2,772 (13) 201.6 1.3 (1.2, 1.3) 1,260 (15) 91.7 1.5 (1.4, 1.6)
 >=40 31,877 (3) 906 (4) 284.2 1.8 (1.7, 1.9) 458 (6) 143.7 2.4 (2.1, 2.6)
Marital status
 Unmarried 551,152 (47) 11,554 (56) 209.6 1.4 (1.4, 1.5) 4,185 (51) 75.9 1.2 (1.1, 1.3)
 Married 619,513 (53) 9,071 (44) 146.4 Ref 3,921 (48) 63.3 Ref
 Missing 2,087 (0) 76 (0) 364.2 38 (0) 182.1
Insurance payor
 Private 487,579 (42) 6,908 (33) 141.7 Ref 3,023 (37) 62.0 Ref
 Medicaid 571,689 (49) 11,685 (56) 204.4 1.4 (1.4, 1.5) 4,182 (51) 73.2 1.2 (1.1, 1.2)
 Medicare 15,331 (1) 398 (2) 259.6 1.8 (1.7, 2.0) 215 (3) 140.2 2.3 (2.0, 2.6)
 Self pay 31,264 (3) 714 (3) 228.4 1.6 (1.5, 1.7) 239 (3) 76.4 1.2 (1.1, 1.4)
 Other payors 64,925 (6) 970 (5) 149.4 1.1 (1.0, 1.1) 469 (6) 72.2 1.2 (1.1, 1.3)
 Missing 1,964 (0) 26 (0) 132.4 16 (0) 81.5
Education
 Less than high school 34,501 (3) 695 (3) 201.4 1.3 (1.2, 1.4) 236 (3) 68.4 1.1 (0.9, 1.2)
 Some high school 133,031 (11) 2,976 (14) 223.7 1.5 (1.4, 1.5) 1,010 (12) 75.9 1.2 (1.1, 1.3)
 High school degree/GED 350,282 (30) 6,855 (33) 195.7 1.3 (1.3, 1.3) 2,546 (31) 72.7 1.1 (1.1, 1.2)
 Some college or higher 624,703 (53) 9,477 (46) 151.7 Ref 4,006 (49) 64.1 Ref
 Missing 30,235 (3) 698 (3) 230.9 346 (4) 114.4
Tobacco use during pregnancy
 Yes 64,911 (6) 1,116 (5) 171.9 1.0 (0.9, 1.0) 446 (5) 68.7 1.0 (0.9, 1.1)
 No 1,102,674 (94) 19,408 (94) 176.0 Ref 7,612 (93) 69.0 Ref
 Missing 5,167 (0%) 177 (1) 342.6 86 (1) 166.4
NCHS rural-urban
 Large central metro 114,252 (10) 2,470 (12) 216.2 Ref 846 (10) 74.0 Ref
 Large fringe metro 548,478 (47) 9,776 (47) 178.2 0.8 (0.8, 0.9) 3,690 (45) 67.3 0.9 (0.8, 1.0)
 Medium metro 127,893 (11) 1,692 (8) 132.3 0.6 (0.6, 0.7) 877 (11) 68.6 0.9 (0.8, 1.0)
 Small metro 182,437 (16) 2,792 (13) 153.0 0.7 (0.7, 0.7) 1,145 (14) 62.8 0.8 (0.8, 0.9)
 Micropolitan 118,127 (10) 2,361 (11) 199.9 0.9 (0.9, 1.0) 961 (12) 81.4 1.1 (1.0, 1.2)
 Non-core 81,565 (7) 1,610 (8) 197.4 0.9 (0.9, 1.0) 625 (8) 76.6 1.0 (0.9, 1.1)
Plurality
 Multiple 21,097 (2) 1,272 (6) 602.9 3.6 (3.4, 3.8) 389 (5) 184.4 2.7 (2.5, 3.0)
 Single 1,151,474 (98) 19,428 (94) 168.7 Ref 7,754 (95) 67.3 Ref
 Missing 181
Parity
 Nulliparity 476,055 (41) 8,706 (42) 182.9 Ref 3,600 (44) 75.6 Ref
 Low multiparity (1–3) 637,379 (54) 10,265 (50) 161.1 0.9 (0.9, 0.9) 3,935 (48) 61.7 0.8 (0.8, 0.9)
 Grand multipara (4+) 59,305 (5) 1,729 (8%) 291.5 1.6 (1.5, 1.7) 608 (7) 102.5 1.4 (1.2, 1.5)
 Missing 13
Prenatal care
 Prenatal care 947,472 (81) 15,676 (76) 165.5 Ref 6,046 (74) 63.8 Ref
 Late or no prenatal care 60,842 (5) 1,358 (7) 223.2 1.3 (1.3, 1.4) 462 (6) 75.9 1.2 (1.1, 1.3)
 Missing 164,438 (14) 3,667 (18) 223.0 1,636 (20) 99.5
Pre-pregnancy hypertension
 Yes 21,989 (2) 795 (4) 361.5 2.1 (2.0, 2.2) 421 (5) 191.5 2.9 (2.6, 3.2)
 No 1,132,578 (97) 19,523 (94) 172.4 Ref 7,557 (93) 66.7 Ref
 Missing 18,185 (2) 383 (2) 210.6 166 (2) 91.3
Gestational hypertension
 Yes 64,408 (5) 2,863 (14) 444.5 2.8 (2.7, 2.9) 1,476 (18) 229.2 3.8 (3.6, 4.1)
 No 1,090,159 (93) 17,455 (84) 160.1 Ref 6,502 (80) 59.6 Ref
 Missing 18,185 (2) 383 (2) 210.6 166 (2) 91.3
Gestational diabetes
 Yes 45,790 (4) 926 (4) 202.2 1.2 (1.1, 1.2) 391 (5) 85.4 1.2 (1.1, 1.4)
 No 1,108,776 (95) 19,392 (94) 174.9 Ref 7,587 (93) 68.4 Ref
 Missing 18,186 (2) 383 (2) 210.6 166 (2) 91.3
*

Rate per 10,000 delivery hospitalizations.

***

counts less than 10 censored with dashed line.

SMM indicates severe maternal morbidity.