Table 1 Clinical and demographic characteristics
Black (n = 4013) | White (n = 3072) | Hispanic (n = 1026) | Other (n = 538) | p test | |
|---|---|---|---|---|---|
Age (years) | 28.81 (5.95) | 30.72 (6.00) | 29.27 (6.03) | 31.20 (5.97) | < 0.001 |
Parity at admission | < 0.001 | ||||
0 | 1385 (34.5) | 1292 (42.1) | 342 (33.3) | 220 (40.9) | |
1 | 1044 (26.0) | 897 (29.2) | 302 (29.4) | 184 (34.2) | |
2+ | 1584 (39.5) | 883 (28.7) | 382 (37.2) | 134 (24.9) | |
Gestational age at delivery (weeks) | 38.04 (3.06) | 38.29 (2.76) | 38.33 (2.65) | 38.45 (2.59) | < 0.001 |
Prenatal visits | 8.52 (4.03) | 9.50 (3.92) | 9.82 (3.83) | 8.97 (3.66) | < 0.001 |
Delivery type | < 0.001 | ||||
Cesarean section | 1035 (25.8) | 787 (25.6) | 265 (25.8) | 117 (21.7) | |
Operative vaginal delivery | 108 (2.7) | 112 (3.6) | 34 (3.3) | 35 (6.5) | |
Spontaneous vaginal delivery | 2870 (71.5) | 2173 (70.7) | 727 (70.9) | 386 (71.7) | |
Married | < 0.001 | ||||
Yes | 313 (7.8) | 1069 (34.8) | 219 (21.3) | 301 (55.9) | |
No | 3598 (89.7) | 1939 (63.1) | 783 (76.3) | 231 (42.9) | |
Missing | 102 (2.5) | 64 (2.1) | 24 (2.3) | 6 (1.1) | |
Education level | < 0.001 | ||||
Attended college | 1002 (25.0) | 1289 (42.0) | 212 (20.7) | 221 (41.1) | |
No college | 2876 (71.7) | 1663 (54.1) | 764 (74.5) | 287 (53.3) | |
Missing | 135 (3.4) | 120 (3.9) | 50 (4.9) | 30 (5.6) | |
Insurance | < 0.001 | ||||
Public | 3584 (89.3) | 2108 (68.6) | 875 (85.2) | 355 (66.0) | |
Private | 316 (7.9) | 848 (27.6) | 90 (8.8) | 120 (22.3) | |
None | 112 (2.8) | 116 (3.8) | 61 (5.9) | 63 (11.7) | |
Missing | 1 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | |
Contraceptive plan | < 0.001 | ||||
Abstinence | 19 (0.5) | 36 (1.2) | 4 (0.4) | 9 (1.7) | |
Copper IUD | 17 (0.4) | 10 (0.3) | 2 (0.2) | 3 (0.6) | |
Declined | 546 (13.4) | 904 (29.4) | 168 (16.4) | 194 (36.0) | |
Depo-Provera | 1387 (34.6) | 562 (18.3) | 243 (23.7) | 83 (15.4) | |
IUD (general) | 410 (10.2) | 256 (8.3) | 129 (12.6) | 51 ( 9.5) | |
Levonorgestrel IUD | 47 (1.2) | 33 (1.1) | 18 (1.8) | 7 (1.3) | |
Norethindrone | 578 (14.4) | 460 (15.0) | 146 (14.2) | 60 (11.2) | |
Combined Oral Contraceptive Pill | 207 (5.2) | 182 (5.9) | 49 (4.8) | 27 (5.0) | |
Other | 5 (0.1) | 8 (0.3) | 0 (0.0) | 3 (0.6) | |
Patch | 8 (0.2) | 5 (0.2) | 2 (0.2) | 0 (0.0) | |
Subcutaneous implant | 34 (0.8) | 25 (0.8) | 12 (1.2) | 1 (0.2) | |
Sterilization | 667 (16.6) | 402 (13.1) | 213 (20.8) | 51 (9.5) | |
Vaginal ring | 24 (0.6) | 24 (0.8) | 7 (0.7) | 8 (1.5) | |
Missing | 70 (1.7) | 165 (5.4) | 33 (3.2) | 41 (7.6) |