Variables | N | All participants (n = 160) | Low risk (n = 24) | Medium risk (n = 79) | High risk (n = 48) | P-values |
---|---|---|---|---|---|---|
Diagnosis received, n (%) | 159 | 112 (70%) | 12 (50%) | 58 (74%) | 33 (69%) | 0.080 |
 WAD |  | 59 (37%) | 7 (58%) | 29 (50%) | 17 (52%) |  |
 Other |  | 53 (31%) | 5 (42%) | 29 (50%) | 16 (49%) | 0.871 |
Canadian Cervical Spine rule, n (%) | ||||||
 Total x-rays required and received | 152 | 109 (68%) | 13 (59%)l* | 52 (69%) l* | 40 (87%) | 0.026 |
 Total x-rays required and not received | 152 | 30 (19%) | 8 (36%)l* | 14 (19%) l* | 5 (11%) | 0.042 |
 Total x-rays not required and received | 152 | 6 (4%) | 1 (5%) | 5 (7%) | 0 (0%) | 0.206 |
 Total x-rays not required and not received | 152 | 7 (4%) | 0 (0%) | 4 (5%) | 1 (2%) | 0.410 |
Total cases of Cervical Spine rule correctly applied | 152 | 116 (73%) | 13 (59%) | 56 (75%) | 41 (89%)* | 0.018 |
Management of high – risk individuals | ||||||
 Number referred, n (%) | 159 | 45 (28%) | 3 (13%) | 22 (28%) | 17 (36%) | 0.124 |
 Time to referral, weeks, mean (SD) | 40 | 4 (4) | 2 (2) | 4 (3) | 5 (5) | 0.477 |
 Referral appropriate, n (%) | 144 | 30 (19%) | 21 (88%)*** | 45 (60%) | 16 (36%) | <  0.001 |
 Therapeutic relationship score (9–45/45), mean (SD) | 131 | 40 (6) | 38 (7) l* | 42 (4) l* | 39 (7) | 0.031 |
 NDI sum score (0–50/50), mean (SD) | 159 | 13 (11) | 5 (7)**** | 10 (9)**** | 22 (10)**** | <  0.001 |
 GPE (−5 to + 5), mean (SD) | 158 | 3 (2) | 4 (2) | 3 (2) | 1 (2)* | < 0.001 |
 Resources booklet received, n (%) | 159 | 28 (17%) | 2 (8%) | 12 (15%) | 8 (19%) | 0.512 |
 Resources booklet received from, n (%) | 29 |  |  |  |  |  |
  Insurer |  | 6 (20%) | 0 (0%) | 2 (15%) | 2 (22%) |  |
  Health practitioner |  | 11 (40%) | 2 (67%) | 3 (23%) | 6 (67%) |  |
  SIRA |  | 9 (31%) | 1 (33%) | 6 (46%) | 1 (11%) |  |
  Other |  | 3 (10%) | 0 (0%) | 2 (15%) | 0 (0%) | 0.295 |
WAD-Evidence tool score (range − 85-165), mean (SD) | 160 | 61 (28) | 59 (17) | 60 (28) | 63 (32) | 0.931 |