Table 5.
Percentage (frequency) of patients above pre-treatment criterion demonstrating reliable improvement and clinically significant change at post-treatment and follow-up according to treatment period (1989–1998 vs 2006–2010).
|
Reliable improvement only
|
Clinically significant change
|
|||||
|---|---|---|---|---|---|---|
| 1989–1998 | 2006–2010 | 1989–1998 | 2006–2010 | |||
| Pre- to post-treatment | % (Freq.) | % (Freq.) | p | % (Freq.) | % (Freq.) | p |
| Pain | ||||||
| Intensity | 13 (109) | 21 (131) | <.001 | 13 (109) | 19 (123) | .002 |
| Distress | 19 (153) | 21 (134) | .270 | 19 (153) | 21 (134) | .270 |
| Interference | 22 (185) | 24 (153) | .513 | 22 (185) | 24 (153) | .513 |
| BDI | 42 (150) | 49 (172) | .059 | 37 (132) | 44 (156) | .042 |
| PSEQ | 50 (406) | 60 (367) | <.001 | 17 (139) | 22 (135) | .024 |
| 5-minute walk | 41 (324) | 49 (299) | .007 | 6 (51) | 6 (35) | .614 |
| Pre-treatment to follow-up | % (Freq.) | % (Freq.) | p | % (Freq.) | % (Freq.) | p |
| Pain | ||||||
| Intensity | 13 (76) | 18 (85) | .027 | 13 (76) | 17 (83) | .041 |
| Distress | 20 (119) | 17 (83) | .312 | 20 (119) | 17 (83) | .312 |
| Interference | 22 (129) | 20 (96) | .562 | 22 (129) | 20 (96) | .562 |
| BDI | 36 (88) | 37 (92) | .994 | 33 (79) | 33 (84) | .896 |
| PSEQ | 46 (271) | 50 (230) | .209 | 18 (106) | 19 (87) | .752 |
| 5-minute walk | 35 (188) | 40 (183) | .115 | 6 (31) | 7 (30) | .697 |
BDI: Beck Depression Inventory; PSEQ: Pain Self Efficacy Questionnaire.
Intensity, rating of how intense pain was on average in previous seven days; Distress, rating of how distressing pain was on average in previous 7 days; Interference, rating of disruptiveness of pain on normal activities in previous 7 days. All χ2 tests administered using Yates correction; Measures on which the significant differences between cohorts (after correction) are highlighted in bold.