Table 1 Characteristics of patients in the whole sample (T0) (n = 116) and the test-retest sub-group (T1) (n = 63)
Age (yrs.) | 116 | 67.7 (8.32) | 63 | 68.6 (8.69) |
|---|---|---|---|---|
Sex (% Women) | 116 | 71 (61) | 63 | 38 (60) |
Civil status (%) | 115 | Â | 62 | Â |
 Married/cohabiting |  | 85 (73) |  | 47 (76) |
 Single |  | 19 (16) |  | 8 (13) |
 Widow/widower |  | 11 (10) |  | 7 (11) |
Language (%) | 114 | Â | 61 | Â |
 Norwegian |  | 109 (94) |  | 59 (97) |
 Other |  | 5 (4) |  | 2 (3) |
Education (<  12 years) (%) | 113 | 62 (53) | 61 | 29 (48) |
Pain medication (yes) (%) | 115 | 50 (43) | 62 | 25 (40) |
Employed (%) | 95 | 35 (37) | 48 | 17 (35) |
Smoking (yes) (%) | 115 | 10 (9) | 62 | 3 (5) |
Expectations about back pain in 3 months (%) | 114 |  | 63 |  |
 Healed |  | 21 (18) |  | 12 (19) |
 Much better |  | 68 (59) |  | 39 (62) |
 No change |  | 24 (21) |  | 11 (18) |
 Much worse |  | 1 (1) |  | 1 (2) |
 Worse than ever |  | 0 (0) |  | 0 (0) |
History of back pain (yes) (%) | 114 | 111 (97) | 62 | 61 (98) |
Frequency of back pain (%) | 109 | Â | 60 | Â |
 Monthly |  | 42 (39) |  | 24 (40) |
 Yearly |  | 36 (33) |  | 21 (35) |
 Less than once per year |  | 19 (17) |  | 10 (17) |
 Once every 5 years |  | 9 (8) |  | 4 (7) |
 One time |  | 3 (3) |  | 1 (2) |
BBQ (9–45), mean (SD) | 106 | 29.8 (7.03) | 57 | 29.2 (6.74) |
NRS (0–10), median (range) | 110 | 6 (0–10) | 61 | 5.4 (0–10) |
FABQ-PA (0–24), mean (SD) | 116 | 10.1 (6.08) | 63 | 10.1 (6.78) |
PCS (0–52), median (range) | 116 | 12 (0–48) | 63 | 11.8 (0–39) |
RMDQ (0–24). mean (SD) | 116 | 10 (5.13) | 63 | 9.8 (4.79) |