Postoperative physical function and pain over predetermined time periods.
| PROM | PHQ-9 <5 (n = 186) | PHQ-95–10 (n = 94) | PHQ-9>10 (n = 71) | P valuea |
| PROMIS-PF | ||||
| Preoperative | 38.8 ± 7.1 (149) | 35.6 ± 6.9 (67) | 33.3 ± 5.9 (51) | <0.001 |
| 6 wk | 44.4 ± 8.3 (112) | 41.2 ± 8.1 (52) | 38.9 ± 8.7 (36) | 0.001 |
| 12 wk | 47.8 ± 9.7 (69) | 43.5 ± 8.3 (39) | 42.5 ± 9.7 (21) | 0.018 |
| 6 mo | 46.3 ± 8.6 (56) | 42.3 ±10.0 (32) | 40.2 ± 12.7 (20) | 0.036 |
| 1 y | 45.3 ± 10.0 (38) | 44.9 ± 12.9 (22) | 43.4 ± 11.3 (18) | 0.836 |
| VAS back | ||||
| Preoperative | 5.7 ± 2.6 (170) | 6.6 ± 2.7 (86) | 7.0 ± 2.0 (65) | <0.001 |
| 6 wk | 2.5 ± 2.4 (131) | 2.8 ± 2.7 (63) | 3.6 ± 2.9 (55) | 0.024 |
| 12 wk | 2.2 ± 2.4 (56) | 3.1 ± 2.7 (42) | 4.1 ± 2.7 (29) | 0.009 |
| 6 mo | 2.7 ± 2.5 (40) | 4.2 ± 3.4 (32) | 5.0 ± 3.1 (22) | 0.011 |
| 1 y | 3.8 ± 3.2 (17) | 3.4 ± 3.3 (16) | 5.0 ± 2.6 (12) | 0.412 |
| VAS leg | ||||
| Preoperative | 5.7 ± 2.6 (170) | 6.3 ± 2.9 (86) | 6.8 ± 2.4 (65) | 0.009 |
| 6 wk | 2.3 ± 2.5 (131) | 2.7 ± 2.8 (63) | 3.7 ± 2.9 (55) | 0.009 |
| 12 wk | 2.5 ± 2.6 (57) | 2.7 ± 2.8 (42) | 3.8 ± 3.2 (29) | 0.110 |
| 6 mo | 2.4 ± 2.5 (40) | 3.3 ± 3.0 (32) | 4.7 ± 3.3 (22) | 0.017 |
| 1 y | 2.4 ± 3.0 (17) | 2.8 ± 2.8 (16) | 4.5 ± 3.6 (12) | 0.180 |
Data presented as mean ± SD (n).
aP value was calculated using linear regression.
PHQ-9, Patient Health Questionnaire-9; PROMIS-PF, Patient-Reported Outcomes Measurement Information System Physical Function; VAS, visual analog scale.