Table 1 Patient characteristics
Variable | No PPC N=99836 | PPC N=1772 | P value |
|---|---|---|---|
Age group | |||
 ≤ 19 | 2313 (2.3) | 59 (3.3) | <0.001 |
 20-24 | 12015 (12.0) | 215 (12.1) |  |
 25-29 | 24852 (24.9) | 411 (23.2) |  |
 30-34 | 33119 (33.2) | 550 (31.0) |  |
 35-39 | 21453 (21.5) | 391 (22.1) |  |
 40-44 | 5489 (5.5) | 121 (6.8) |  |
 ≥ 45 | 595 (0.6) | 25 (1.5) |  |
Race-ethnicity group | |||
 Non-Hispanic White | 43495 (43.6) | 659 (37.2) | <0.001 |
 Non-Hispanic Black | 35856 (35.9) | 684 (38.6) |  |
 Non-Hispanic Asian | 6099 (6.1) | 111 (6.3) |  |
 Non-Hispanic other | 4226 (4.2) | 79 (4.4) |  |
 Hispanic | 10160 (10.2) | 239 (13.5) |  |
Marital status | |||
 Single | 39895 (40.0) | 760 (42.9) | <0.001 |
 Married | 56567 (56.7) | 933 (52.7) |  |
 Separated or divorced | 1808 (1.7) | 39 (2.1) |  |
 Widow | 105 (0.1) | 0 (0) |  |
 Not reported | 1459 (1.5) | 40 (2.3) |  |
Primary payer | |||
 Government | 43855 (43.9) | 876 (49.4) | <0.001 |
 Commercial insurance | 54688 (54.8) | 876 (49.4) |  |
 Other | 1293 (1.3) | 20 (1.2) |  |
Admission APR severity of illness | |||
 Mild | 55375 (55.5) | 560 (31.6) | <0.001 |
 Moderate | 33072 (33.1) | 583 (32.9) |  |
 Severe | 10891 (10.9) | 517 (29.2) |  |
 Extreme | 498 (0.5) | 112 (6.3) |  |
Chronic hypertension | 1980 (2.0) | 78 (4.4) | <0.001 |
Pre-eclampsia | 8620 (8.6) | 307 (17.3) | <0.001 |
Diabetes mellitus | 2062 (2.1) | 59 (3.3) | <0.001 |
Gestational diabetes | 10593 (10.6) | 176 (9.9) | 0.36 |
Prior Cesarean delivery | 16692 (16.7) | 283 (16.0) | 0.40 |
Preterm delivery | 2936 (2.9) | 101 (5.7) | <0.001 |
Total length of hospital stay | 3 [3, 4] | 4 [3, 5] | <0.001 |
Total hospital charges ($) | 8469 [6440, 11642] | 13111 [9152, 20423] | <0.001 |
Unplanned hospital readmission | 1635 (1.6) | 81 (4.6) | <0.001 |