Table 2.
Patient Characteristics for Patients Who Have Participated in IPRP
| All | Women | Men | p (d) or [OR; CI 95%] | Employed or Student | Unemployed | p (d) or [OR; CI 95%] | ||
|---|---|---|---|---|---|---|---|---|
| Demographics | ||||||||
| Sex | Women % (n) | 79.2 (3018) | 79.2 (3018) | ------------ | 79.7 (2343) | 76.6 (367) | 0.13 | |
| Men % (n) | 20.8 (791) | 20.8 (791) | 20.3 (596) | 23.4 (112) | ||||
| Age | m ± SD | 44.7 ± 10.4 | 44.5 ± 10.3 | 45.3 ± 10.7 | 0.05 | 44.7 ± 10.1 | 43.2 ± 11.0 | 4.82E−3 |
| Range | 18–65 | 18–65 | 19–65 | 18–65 | 19–64 | |||
| Health-related variables | ||||||||
| Pain duration | m ± SD | 3237 ± 3310 | 3272 ± 3331 | 3109 ± 3229 | 0.24 | 3081 ± 3242 | 3625 ± 3441 | 2.30E−3 |
| Pain average last week | m ± SD | 6.6 ± 1.9 | 6.7 ± 1.9 | 6.5 ± 2.0 | 0.01 | 6.5 ± 1.9 | 7.0 ± 1.9 | 2.65 E−8 (0.28) |
| Range 0–10 | ||||||||
| Anxiety | m ± SD | 9.7 ± 4.6 | 9.8 ± 4.6 | 9.4 ± 4.5 | 0.05 | 9.6 ± 4.6 | 10.6 ± 4.6 | 1.10E−5 (0.22) |
| Range 0–21 | ||||||||
| Depression | m ± SD | 9.3 ± 4.3 | 9.3 ± 4.3 | 9.5 ± 4.5 | 0.18 | 9.1 ± 4.3 | 9.9 ± 4.4 | 6.38E−4 |
| Range 0–21 | ||||||||
| General health | m ± SD | 39.7 ± 19.3 | 39.2 ± 19.3 | 41.5 ± 18.9 | 2.46E−3 | 40.6 ± 19.2 | 36.8 ± 19.6 | 1.64E−4 (0.19) |
| Range | 0–100 | 0–100 | 0–95 | 0–100 | 0–90 | |||
| Vitality | m ± SD | 25.0 ± 18.1 | 24.0 ± 17.8 | 28.6 ± 18.8 | 2.37 E−9 (−0.25) | 25.3 ± 18.1 | 24.3 ± 18.4 | 0.27 |
| Range | 0–95 | 0–90 | 0–95 | 0–95 | 0–87 | |||
| Physical role function | m ± SD | 12.5 ± 25.6 | 12.0 ± 24.9 | 14.4 ± 27.9 | 0.03 | 13.1 ± 26.2 | 10.6 ± 23.4 | 0.04 |
| Range 0–100 | ||||||||
| Education/work variables | ||||||||
| Education: post upper secondary school | % (n) | 36.1 (1177) | 39.7 (1032) | 22.0 (145) | 5.39 E−18 [0.43;0.35–0.52] | 39.5 (1018) | 24.2 (94) | 3.99 E−9 [2.0;1.60–2.61] |
| Employed or student | % (n) | 86.0 (2939) | 86.5 (2343) | 84.2 (596) | 0.13 | 86.0 (2939) | 14.0 (479) | ----------- |
| Sick leave compensation | % (n) | 61.8 (2184) | 63.0 (1751) | 57.7 (433) | 0.01 | 61.1 (1671) | 56.7 (267) | 0.07 |
| Work importance | m ± SD | 1.8 ± 0.8 | 1.8 ± 0.8 | 1.8 ± 0.8 | 0.88 | 1.7 ± 0.8 | 1.8 ± 0.9 | 0.03 |
| Range 1–5 | ||||||||
| Self-rated work ability | m ± SD | 3.4 ± 2.5 | 3.4 ± 2.6 | 3.3 ± 2.5 | 0.55 | 3.7 ± 2.6 | 2.5 ± 2.2 | 1.98 E−22 (0.46) |
| Range 0–10 | ||||||||
Notes: Separately presented for sex and employment status at inclusion of IPRP. Bold text denotes differences between groups presented at p < 0.0006.
Abbreviations: CI, confidence interval; d, Cohen´s d; m, mean; n, number; OR, Odds ratio; p, p-value; SD, standard deviation.