Table 5.
Models to predict the CSI score for the total group and per sex.
| Group | Total Group | Women | Men | |||
|---|---|---|---|---|---|---|
| unadjusted R2 | 0.580 | 0.579 | 0.550 | |||
| adjusted R2 | 0.577 | 0.576 | 0.545 | |||
| β | CI 95% | β | CI 95% | β | CI 95% | |
| Constant | 69.71 | 60.88–78.53 | 79.43 | 68.35–90.52 | 65.38 | 53.67–77.08 |
| Sex | 2.79 | 1.72–3.86 | - | - | - | - |
| Age(years) | −0.07 | −0.10–−0.03 | −0.10 | −0.15–−0.05 | - | - |
| BMI | 0.10 | 0.01–0.20 | 0.13 | 0.01–0.24 | - | - |
| Pain severity (NRS) | −0.36 | −0.72–−0.01 | - | - | - | - |
| Pain catastrophizing (PCS) | 0.16 | 0.11–0.21 | 0.09 | 0.02–0.16 | 0.23 | 0.16–0.31 |
| Pain disability (PDI) | 0.13 | 0.08–0.18 | 0.10 | 0.04–0.16 | 0.12 | 0.05–0.19 |
| Number of pain locations | 2.18 | 1.91–2.44 | 2.24 | 1.91–2.56 | 2.05 | 1.59–2.50 |
| Number of CSSs (CSI part B) | 3.24 | 2.83–3.66 | 3.21 | 2.71–3.71 | 3.23 | 2.50–3.96 |
| Physical component (SF-12) | −0.40 | −0.50–−0.30 | −0.40 | −0.54–−0.25 | −0.44 | −0.60–−0.29 |
| Mental component (SF-12) | −0.73 | −0.82–−0.64 | −0.80 | −0.92–−0.67 | −0.63 | −0.76–−0.50 |
Abbreviations: β: unstandardized beta; CI 95%: confidence interval of 95%; BMI: body mass index; NRS: numeric rating scale for pain; PCS: pain catastrophizing scale; PDI: pain disability index; CSSs: central sensitivity syndromes; CSI: central sensitization inventory; SF12: short-form 12-item health questionnaire. Statistics: Multiple regression analysis (backwards).