Table 4.
Factors associated with costs at 12 months, based on a generalised linear model for the whole group
| Coefficient (SE) n = 608 | |
|---|---|
| NHS Cost | |
| Constant | 5.95 (0.163) ** |
| General Health | |
| SF-1 general health | −0.051 (0.055) |
| RMDQ | −0.000 (0.009) |
| Psychological measures and perceptions | |
| HADs depression | −0.016 (0.014) |
| AIC: 13.39 BIC: − 3303.19 | |
| Societal Costs | |
| Constant | 8.12 (0.403) ** |
| General Health | |
| SF-1 general health | −0.173 (0.099)* |
| RMDQ | −0.009 (0.018) |
| Psychological measures and perceptions | |
| HADs depression | −0.013 (0.026) |
| Personal characteristics | |
| Agea | −0.005 (0.006) |
| Comorbiditiesb | −0.050 (0.170) |
| Care pathways-unadjusted (0–2 physiotherapy sessions) | |
| 3 or more physiotherapy sessions | −0.307 (0.160)* |
| Referrals to spinal specialist services | −0.174 (0.256) |
| AIC:16.00 BIC:-2441.59 | |
NHS National Health Service, RMDQ Roland Morris Disability Questionnaire, SE Standard Error, HADs Hospital and Anxiety Depression scale
**p < 0.05,*p < 0.1
aSex is measured as 1 Female 0 Male
bComorbidities included none, one, 2 or more chest problems, heart problems, raised BP, diabetes, circulation problems in leg(s)