Characteristics (potential prognostic factors)* | Category | Study population (n=680) | Complete study sample**(n=569) | |||
---|---|---|---|---|---|---|
Freq.a(n) | %b | Miss.c(n) | Freq.a(n) | %b | ||
Socio-demographics | ||||||
Age, mean (SD) | 39 | (15) | 39 | (15) | ||
Sex | Females | 471 | 69.3 | 403 | 70.8 | |
Marital status | Single | 215 | 31.6 | 188 | 33.0 | |
Married | 381 | 56.0 | 315 | 55.4 | ||
Widowed | 21 | 3.1 | 18 | 3.2 | ||
Separated/Divorced | 63 | 9.3 | 48 | 8.4 | ||
Education | < Grade 8 | 33 | 4.9 | 1 | 28 | 4.9 |
Grade 8 | 97 | 14.3 | 76 | 13.4 | ||
High school | 173 | 25.4 | 148 | 26.0 | ||
Post-secondary school | 189 | 27.8 | 165 | 29.0 | ||
Technical school | 102 | 15.0 | 83 | 14.6 | ||
University | 85 | 12.5 | 69 | 12.1 | ||
Work statusd | Working | 537 | 79.0 | 452 | 79.4 | |
Collision, symptoms, comorbidity and health care | ||||||
No. of days to reporting the collision, mean (SD) | 16 | (10) | 16 | (9) | ||
Neck pain intensitye | No pain | 0 | 0 | 0 | 0 | |
Mild | 91 | 13.4 | 12 | 85 | 14.9 | |
Moderate | 300 | 44.1 | 260 | 45.7 | ||
Severe | 277 | 40.7 | 224 | 39.4 | ||
Low back pain intensitye | No pain | 295 | 43.4 | 12 | 259 | 45.5 |
Mild | 79 | 11.6 | 66 | 11.6 | ||
Moderate | 171 | 25.2 | 143 | 25.1 | ||
Severe | 123 | 18.1 | 101 | 17.8 | ||
Headache intensitye | No pain | 116 | 17.1 | 3 | 105 | 18.4 |
Mild | 101 | 14.9 | 82 | 14.4 | ||
Moderate | 233 | 34.3 | 201 | 35.3 | ||
Severe | 227 | 33.4 | 181 | 31.8 | ||
Pain other than neck and back pain | Yes | 529 | 77.8 | 432 | 75.9 | |
Symptoms in arms or handsf | Yes | 293 | 43.1 | 235 | 41.3 | |
Pain when moving neck | Yes | 593 | 87.2 | 494 | 86.8 | |
Reduced neck movement | Yes | 525 | 77.2 | 437 | 76.8 | |
Sleeping problems | Yes | 470 | 69.1 | 396 | 69.6 | |
Musculoskeletal problem before collisiong | Absent | 459 | 67.5 | 3 | 384 | 67.5 |
No/Mild | 140 | 20.6 | 125 | 22.0 | ||
Severe | 78 | 11.5 | 60 | 10.5 | ||
Headache before collisionh | Absent | 412 | 60.6 | 1 | 345 | 60.6 |
No/Mild | 180 | 26.5 | 154 | 27.0 | ||
Severe | 87 | 12.8 | 70 | 12.4 | ||
Restrictions in daily home activity | Yes | 411 | 60.4 | 342 | 60.1 | |
Restrictions in leisure activityi | Yes | 114 | 16.8 | 99 | 17.4 | |
MD visits since collisionj | 1 | 285 | 41.9 | 5 | 251 | 44.1 |
2 | 238 | 35.0 | 192 | 33.7 | ||
≥ 3 | 152 | 22.4 | 126 | 22.1 | ||
PT visits since collisionk | 1 | 246 | 36.2 | 10 | 198 | 34.8 |
2 | 189 | 27.8 | 164 | 28.8 | ||
≥ 3 | 235 | 34.6 | 207 | 36.4 | ||
General health and psychology | ||||||
Recovery expectationsl | Better soon | 142 | 20.9 | 1 | 130 | 22.9 |
Better slowly/Never better | 320 | 47.1 | 267 | 46.9 | ||
Don′t know | 217 | 31.9 | 172 | 30.2 | ||
Current general healthm | Excellent | 17 | 2.5 | 15 | 2.6 | |
Very good | 54 | 7.9 | 49 | 8.6 | ||
Good | 190 | 27.9 | 164 | 28.8 | ||
Fair | 288 | 42.4 | 241 | 42.4 | ||
Poor | 131 | 19.3 | 100 | 17.6 | ||
General health the month before collisionn | Excellent | 255 | 37.5 | 214 | 37.6 | |
Very good | 250 | 36.8 | 218 | 38.3 | ||
Good | 130 | 19.1 | 100 | 17.6 | ||
Fair/Poor | 45 | 6.6 | 37 | 6.5 | ||
Anxiety or worry | Yes | 285 | 41.9 | 238 | 41.8 | |
Depressed moodo | Yes | 300 | 44.7 | 18 | 255 | 44.8 |