Table 2.
Psychological characteristics
| Pre-delivery questionnaires | Low acute postpartum pain (NRS 0–2) N = 759 |
High acute postpartum pain (NRS ≥ 3) N = 121 |
Unadjusted OR (95% CI) | P-value |
|---|---|---|---|---|
| A-LPQ, mean (SD) | ||||
| Uterine contraction pain subscale (0 to 40) | 25.7 (10.6) | 25.6 (9.1) | 1.00 (0.98–1.02) | 0.9088 |
| Fear/ anxiety subscale (0 to 40) | 22.7 (11.0) | 23.0 (10.1) | 1.00 (0.99–1.02) | 0.7646 |
| Back pain/ long haul subscale (0 to 50) | 30.1 (14.4) | 30.6 (13.8) | 1.00 (0.99–1.02) | 0.7158 |
| Birthing pain subscale (0 to 40) | 21.0 (13.6) | 25.2 (12.0) | 1.03 (1.01–1.04) | 0.0022 |
| The enormity of pain subscale (0 to 50) | 27.5 (15.5) | 27.4 (15.2) | 1.00 (0.99–1.01) | 0.9796 |
| Total score (0 to 220) | 127.2 (50.2) | 130.8 (46.4) | 1.00 (1.00–1.01) | 0.4738 |
| PCS, mean (SD) | ||||
| Helplessness subscale (0 to 24) | 7.6 (5.3) | 7.3 (5.4) | 0.99 (0.96–1.03) | 0.5945 |
| Magnification subscale (0 to 12) | 4.1 (2.8) | 4.0 (2.6) | 1.00 (0.93–1.07) | 0.8948 |
| Rumination subscale (0 to 16) | 7.1 (4.4) | 7.0 (4.3) | 0.99 (0.95–1.04) | 0.7449 |
| Total score (0 to 52) | 18.8 (11.4) | 18.3 (11.3) | 1.00 (0.98–1.01) | 0.6946 |
| PCS total score, n (%) | ||||
| No (PCS < 25) | 503 (67.7) | 81 (69.8) | Reference | -- |
| Yes (PCS ≥ 25) | 240 (32.3) | 35 (30.2) | 0.91 (0.59–1.39) | 0.6477 |
| STAI, mean (SD) | ||||
| State anxiety (20 to 80) | 39.4 (11.4) | 40.1 (10.5) | 1.01 (0.99–1.02) | 0.5303 |
| Trait anxiety (20 to 80) | 38.6 (9.4) | 38.0 (8.9) | 1.00 (0.98–1.02) | 0.5462 |
| Total anxiety (40 to 160) | 78.0 (19.2) | 78.1 (17.6) | 1.00 (0.99–1.01) | 0.9398 |
| FACS (0 to 100), mean (SD) | 37.7 (18.4) | 38.7 (17.4) | 1.00 (0.99–1.01) | 0.5973 |
A-LPQ Angle Labor Pain Questionnaire; CI confidence interval; FACS Fear Avoidance Components Scale; NRS numerical rating scale; OR odds ratio; PCS Pain Catastrophizing Scale; SD standard deviation; STAI State Trait Anxiety Inventory