Table 1.
Scores at Baseline, Posttreatment, and 12-Month Follow-up for Outcome and Potential Mediator Variables.a
| Variable | Baseline Score (n = 216) | Posttreatment Score (n = 216) | 12-mo Follow-up Score (n = 216) | |||
|---|---|---|---|---|---|---|
| Treatment (n = 110) | Control (n = 106) | Treatment (n = 110) | Control (n = 106) | Treatment (n = 110) | Control (n = 106) | |
| Outcomes | ||||||
| Disability (RMDQ) | 9.02 (3.91) | 9.66 (4.06) | 4.83 (3.98) | 5.46 (4.59) | 4.21 (4.09) | 3.21 (3.27) |
| Potential mediators | ||||||
| Pain catastrophizing | 17.97 (9.01) | 14.35 (8.72) | 11.63 (8.43) | 11.38 (8.66) | 11.49 (9.02) | 10.51 (8.73) |
| Illness perceptions | 44.50 (10.32) | 40.43 (9.29) | 33.42 (14.12) | 34.23 (12.49) | 32.40 (14.51) | 30.75 (14.09) |
| Back pain myths (no. correct) | 4.11 (1.93) | 3.81 (2.07) | 4.67 (2.32) | 3.97 (2.17) | 4.49 (2.03) | 3.89 (2.12) |
| Potential confounders | ||||||
| Treating HCP (general practitioner or physical therapist) | 60% physical therapist | 76% physical therapist | ||||
| Pain durationb | ||||||
| Acute | 60 (54.5) | 46 (43.4) | ||||
| Subacute | 21 (19.1) | 23 (21.7) | ||||
| Chronic | 29 (26.4) | 37 (34.9) | ||||
| Pain intensity | 5.23 (2.00) | 5.47 (1.73) | 3.21 (2.20) | 3.15 (2.15) | 3.13 (2.40) | 2.84 (2.12) |
aValues are reported as mean (SD) unless otherwise indicated. HCP = health care professional.
bReported as number (percentage) of participants.