TABLE 3.
Baseline characteristics for demographic, work and health measures for intervention and control group.
|
Intervention group (n = 280) |
Control group (n = 70) |
Difference |
|
| Mean (SD) | Mean (SD) | T (df#) | |
| Number of days between pre- and post-test | 28.2 (23.3) | 28.3 (6.1) | 0.04 (364) |
| Full or part time sick leave prior to rehabilitation (months) | 6.5 (4.1) | Not relevant | |
| Performance on computerized tests (range 1–5; 5 = most important) | 2.9 (1.1) | 2.5 (1.1) | 2.32(314)∗ |
| Work ability (range 0–10; 10 = best work ability) | 3.8 (2.4) | 8.8 (1.3) | 15.86(326)∗∗∗ |
| Return-to-Work Self-Efficacy-19 | |||
| - Meeting job demands (range 1–70; 70 = highest self-efficacy) | 34.0 (18.4) | Not relevant | |
| - Modifying job tasks (range 1–60; 60 = highest self-efficacy) | 28.6 (13.2) | Not relevant | |
| - Communicating needs (range 1–60; 60 = highest self-efficacy) | 36.2 (14.6) | Not relevant | |
| Subjective Health Complaints Inventory | |||
| - Pseudoneurology (range 0–21; 21 = highest severity) | 7.1 (4.0) | 2.0 (2.5) | 9.05(319)∗∗∗ |
| - Musculoskeletal pain (range 0–24; 24 = highest severity) | 9.9 (5.0) | 3.2 (3.5) | 9.52(318)∗∗∗ |
| Theoretically Originated Measure of the Cognitive Activation Theory of Stress | |||
| - Coping (range 1–4; 1 = best coping) | 2.0 (0.6) | 1.7 (0.6) | 3.65(317)∗∗∗ |
| - Hopelessness (range 1–12; 1 = most hopelessness) | 9.1 (1.9) | 10.7 (1.8) | 5.72(318)∗∗∗ |
| - Helplessness (range 1–12; 1 = most helplessness) | 9.6 (2.0) | 11.2 (1.6) | 5.31(315)∗∗∗ |
| Fear Avoidance Beliefs Questionnaire | |||
| - Work (range 0–42; 0 = no fear avoidance) | 20.4 (11.5) | 2.6 (5.6) | 9.52(283)∗∗∗ |
| - Physical activity (range 0–24; 0 = no fear avoidance) | 8.9 (5.9) | 2.2 (4.3) | 6.94(288)∗∗∗ |
| 36-Item Short Form Health Survey | |||
| - Pain (item seven) (range 1–6; 1 = no pain) | 4.5 (1.1) | 2.5 (1.3) | 12.17(315)∗∗∗ |
| - Pain related to work (item eight) (range 1–5; 1 = not affected) | 3.4 (1.1) | 1.6 (0.9) | 11.62(315)∗∗∗ |
| Hospital Anxiety and Depression Scale | |||
| - Anxiety (range 0–21; 0 = no anxiety) | 8.3 (4.4) | 4.2 (3.6) | 6.42(311)∗∗∗ |
| - Depression (range 0–21; 0 = no depression) | 6.4 (4.0) | 2.3 (2.9) | 7.05(311)∗∗∗ |
n, sample size; SD, standard deviation; T, T statistic; df, degrees of freedom. #All participants did not respond to all questionnaire items or single item questions. ∗p < 0.05. ∗∗∗p < 0.001.