Table 1 Patient characteristics
| Â | PFD group | LBP group | Total |
|---|---|---|---|
Patient characteristics | |||
Invited; n (%) | 384 (46.5) | 441 (53.5) | 825 |
Non-participants; (% total) | 8 (2.0) | 57 (12.9) | 65 (7.9) |
For analysis; n (%) | 376 (49.6) | 382 (50.4) | 758 |
Gender | |||
Women; n (% women) | 371 (96.6) | 235 (53.3) | 605 (73.3) |
Age | |||
 Age, women; mean, years (SD) | 60.0 (17.8) | 45.3 (10.4) | 51.5 (15.7) |
 Age, men; mean, years | 61.25 (17.7) | 46.3 (10.8) | 47.2 (11.8) |
SDM | |||
 SDM, women; mean score (SD) | 4.12 (1.07) | 3.43 (1.10) | 3.87 (1.13) |
 SDM, men; mean score, (SD) | 3.67 (1.56) | 3.46 (1.19) | 3.47 (1.21) |
 Missings, SDM total score; n | 19 | 59 | 78 |