|  | Contactable patients, n = 25 | Non contactable patients, n = 6 | p value for differences of mean between patients contactable and not contactable |
---|---|---|---|---|
Age | Mean | 41 | 37 | .3 |
 | Min | 26 | 21 |  |
 | Max | 58 | 50 |  |
LBP according to Low Back Pain Rating Scale (Range 0-30) | Mean | 19 | 17 | .2 |
 | Min | 10 | 11 |  |
 | Max | 26 | 24 |  |
Disability according to Low Back Pain Rating Scale (Range 0-100%) | Mean | 52 | 45 | .4 |
 | Min | 23 | 19 |  |
 | Max | 80 | 79 |  |
Depression score according to Beck Depression Inventory | Mean | 10 | 12 | .5 |
 | Min | 1 | 4 |  |
 | Max | 28 | 28 |  |
Psychosocial score according to Orebro Musculoskeletal Pain Screening Questionnaire | Mean | 115 | 104 | .4 |
 | Min | 69 | 52 |  |
 | Max | 154 | 161 |  |