Table 3.
Characteristics of postpartum rectus abdominis diastasis patients with and without low back pain
| Variable | Without low back pain (n = 239) | With low back pain (n = 78) | P value |
|---|---|---|---|
| Demographic characteristics | |||
| Age (yr) | |||
| < 30 | 6 (2.5) | 1 (1.3) | 0.303a |
| 30 to < 40 | 145 (60.7) | 41 (52.6) | |
| 40 to < 50 | 86 (36.0) | 36 (46.2) | |
| 50 to < 60 | 2 (0.8) | 0 | |
| Race or ethnic group | |||
| Black/African | 10 (4.2) | 5 (6.4) | 0.788a |
| Asian | 13 (5.4) | 6 (7.7) | |
| Hispanic | 10 (4.2) | 4 (5.1) | |
| White | 194 (81.2) | 58 (74.4) | |
| Others | 12 (5.0) | 5 (6.4) | |
| Body mass index (kg/m2) | |||
| 18.5 to < 25 | 90 (37.7) | 22 (28.2) | 0.419a |
| 25 to < 30 | 86 (36.0) | 32 (41.0) | |
| 30 to < 40 | 56 (23.4) | 20 (25.6) | |
| ≥ 40 | 7 (2.9) | 4 (5.1) | |
| Delivery mode | |||
| Non-cesarean | 79 (33.1) | 20 (25.6) | 0.220 |
| Cesarean | 160 (66.9) | 58 (74.4) | |
| Social history | |||
| Smoking state | 27 (11.3) | 10 (12.8) | 0.716 |
| Alcohol use | 103 (43.1) | 29 (37.2) | 0.357 |
| Depressive disorder | 46 (19.2) | 27 (34.6) | 0.005 |
| Concomitant conditions | |||
| Pelvic pain | 42 (17.6) | 27 (34.6) | 0.002 |
| Strain of muscle, fascial and tendon | 7 (2.9) | 12 (15.4) | < 0.001 |
| Adhesions | 30 (12.6) | 10 (12.8) | 0.951 |
| Hernia status | 77 (32.2) | 22 (28.2) | 0.507 |
| Hernia type | |||
| Diaphragmatic hernia | 2 (0.8) | 4 (5.1) | 0.053b |
| Ventral hernia | 38 (15.9) | 13 (16.7) | 0.873 |
| Groin hernia | 4 (1.7) | 4 (5.1) | 0.203b |
| Incisional hernia | 7 (2.9) | 1 (1.3) | 0.697b |
| Umbilical hernia | 57 (23.8) | 15 (19.2) | 0.398 |
Values are presented as number (%).
aLikelihood ratio chi-square test. bContinuity correction chi-square test.