Table 5. Adjusted association between PSQI and independent variables in the multiple logistic regression model.
| Characteristic | Regression coefficients | Standard error | P | OR | OR95%CI | |
|---|---|---|---|---|---|---|
| Lower limit | Upper limit | |||||
| PSQI(two-category) | −0.4675 | 0.1862 | 0.0121 | 1.596 | 1.108 | 2.299 |
| Mild depression | 0.0170 | 0.1841 | 0.9263 | 1.017 | 0.709 | 1.459 |
| Moderate depression | 0.3497 | 0.2907 | 0.2289 | 1.419 | 0.803 | 2.508 |
| Severe depression | 2.1709 | 1.4569 | 0.1362 | 8.766 | 0.504 | 152.377 |
| Mild anxiety | 0.2453 | 0.1873 | 0.1903 | 1.278 | 0.885 | 1.845 |
| Moderate anxiety | 0.4958 | 0.2408 | 0.0395 | 1.642 | 1.024 | 2.632 |
| Severe anxiety | 0.8579 | 0.6348 | 0.1766 | 2.358 | 0.680 | 8.183 |
Notes.
The severity of NSLBP was divided into three groups: mild NSLBP (VAS 0–3), moderate NSLBP (VAS 4–6), severe NSLBP (VAS > 7). The severity of anxious symptom was also divided into three groups: mild anxiety (BAI = 15–25), moderate anxiety (BAI = 26–35), severe anxiety (BAI > 36). The severity of depression symptom was also divided into three groups: mild depression (BDI = 5–13), moderate depression (BDI = 14–20), severe depression (BDI > 21).