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 | 62 | ||
| Married/cohabiting | 85 (73) | 47 (76) | ||
| Single | 19 (16) | 8 (13) | ||
| Widow/widower | 11 (10) | 7 (11) | ||
| Language (%) | 114 | 61 | ||
| 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 | 60 | ||
| 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) |
BBQ Back Beliefs Questionnaire; NRS Numeric Rating Scale; FABQ Fear-Avoidance Beliefs Questionnaire; RMDQ Roland-Morris Disability Questionnaire; PCS Pain Catastrophizing Scale