All patients | Positive discordance (n = 187) | Concordance (n = 549) | Negative discordance (n = 18) |  | ||||
---|---|---|---|---|---|---|---|---|
 | Mean (SD) | Median (Q1, Q3) | Mean (SD) | Median (Q1, Q3) | Mean (SD) | Median (Q1, Q3) | P valuea | |
Activity impairment (n = 754) | Baseline, % | 51.1 (20.7) | 50.0 (40.0, 70.0) | 41.3 (19.2) | 40.0 (30.0, 50.0) | 42.8 (19.9) | 45.0 (30.0, 60.0) | <0.0001 |
Week 36, % | 35.4 (20.8) | 30.0 (20.0, 50.0) | 15.1 (16.6) | 10.0 (0, 20.0) | 25.6 (21.2) | 20.0 (10.0, 50.0) | <0.0001 | |
Δ Baseline to week 36 | −15.7 (24.5) | −10.0 (–30.0, 0) | −26.2 (21.7) | −30.0 (–0.0, –10.0) | −17.2 (25.9) | −10.0 (–30.0, 0) | <0.0001 | |
Employed patients | Positive discordance (n = 76) | Concordance (n = 206) | Negative discordance (n = 5) |  | ||||
Mean (SD) | Median (Q1, Q3) | Mean (SD) | Median (Q1, Q3) | Mean (SD) | Median (Q1, Q3) | P valuea | ||
Impairment while working (n = 287) | Baseline, % | 50.0 (27.4) | 40.0 (30.0, 70.0) | 37.8 (25.5) | 30.0 (20.0, 50.0) | 42.0 (27.7) | 50.0 (20.0, 50.0) | 0.0026 |
Week 36, % | 26.3 (18.7) | 20.0 (20.0, 40.0) | 10.7 (13.8) | 10.0 (0, 20.0) | 12.0 (13.0) | 10.0 (0, 20.0) | <0.0001 | |
Δ Baseline to week 36 | −23.7 (29.9) | −20.0 (–0.0, 0) | −27.1 (26.4) | −20.0 (–40.0, –10.0) | −30.0 (23.5) | −20.0 (–50.0, –10.0) | <0.0001 | |
Overall work impairment (n = 287) | Baseline, % | 54.6 (27.1) | 50.0 (33.2, 76.1) | 41.5 (27.2) | 40.0 (20.0, 60.0) | 43.7 (28.6) | 50.0 (20.0, 58.3) | 0.0019 |
Week 36, % | 28.7 (20.6) | 20.0 (20.0, 40.0) | 12.2 (15.9) | 10.0 (0, 20.0) | 12.0 (13.0) | 10.0 (0, 20.0) | <0.0001 | |
Δ Baseline to week 36 | −25.8 (30.9) | −20.1 (–45.0, –8.6) | −29.3 (27.4) | −22.0 (–46.7, –10.0) | −31.7 (25.4) | −20.0 (–58.3, –10.0) | <0.0001 | |
Employed patients | Positive discordance (n = 74) | Concordance (n = 200) | Negative discordance (n = 5) |  | ||||
Mean (SD) | Median (Q1, Q3) | Mean (SD) | Median (Q1, Q3) | Mean (SD) | Median (Q1, Q3) | p valuea | ||
Work time missed (n = 279) | Baseline, % | 16.9 (30.2) | 0 (0, 17.2) | 10.7 (24.3) | 0 (0, 6.3) | 3.3 (7.5) | 0 (0, 0) | 0.1565 |
Week 36, % | 5.9 (15.9) | 0 (0, 1.8) | 2.4 (11.0) | 0 (0, 0) | 0 (0) | 0 (0, 0) | 0.2608 | |
Δ Baseline to week 36 | −11.0 (30.9) | 0 (–10.5, 0) | −8.2 (22.9) | 0 (–2.5, 0) | −3.3 (7.5) | 0 (0, 0) | 0.2608 |