Table 5.
Assessment of predictive factors at baseline associated with satisfaction rate.
| Univariate | Multivariate | |||
|---|---|---|---|---|
| OR | 95% CI | OR | 95% CI | |
| Age (continuous) | 1.006 | 0.993 1.020 | ||
| Gender, male (ref. female) | 0.921 | 0.649 1.307 | ||
| Smoking status (ref. nonsmoking) | ||||
| Quit | 0.759 | 0.474 1.216 | ||
| Yes | 1.189 | 0.749 1.887 | ||
| Drinking (ref. no) | 1.151 | 0.710 1.864 | ||
| Body Mass Index (kg/m2) (continuous) | 1.009 | 0.979 1.039 | ||
| Previous back pain (ref. no pain) | ||||
| Disc herniation | 1.429 | 0.964 2.118 | ||
| Other (e.g., fracture) | 3.056 | 1.121 8.332 | ||
| Comorbid illness (ref. no comorbidity)a | 1.781 | 1.050 3.023 | ||
| Radiating pain (ref. no pain) | ||||
| Unilateral | 1.040 | 0.666 1.625 | 0.855 | 0.511 1.431 |
| Bilateral | 3.067 | 1.638 5.743 | 2.231 | 1.030 4.832 |
| Radiating pain below knee (ref. no pain) | ||||
| Unilateral | 1.076 | 0.749 1.546 | ||
| Bilateral | 1.149 | 0.267 4.947 | ||
| Straight leg raising test < 60° (ref. ≧ 60°) | 1.017 | 0.701 1.474 | ||
| Range of lumbar flexion < 60° (ref. ≧ 60°) | 0.612 | 0.427 0.877 | 0.652 | 0.426 0.999 |
| Surgery (ref. no surgery) | 0.866 | 0.478 1.570 | ||
| Previous treatment (for current episode) | ||||
| Nerve blocks (ref. no) | 0.797 | 0.542 1.171 | ||
| Pain killers (ref. no) | 0.693 | 0.470 1.023 | ||
| CAM (ref. no) | 0.694 | 0.446 1.080 | ||
| Duration of current episode (days) (ref. < 1 month) | ||||
| Between 1 and 6 months | 1.082 | 0.713 1.641 | ||
OR, odds ratio; CAM, complementary and alternative medicine; only statistically significant variables from univariate regression were included using stepwise method in multivariable logistic regression with age and gender (p < 0.05); aany self-reported gastritis, tuberculosis, poliomyelitis, cardiovascular disease, uterine myoma, or hepatitis B carrier.