Table 4.
Simple and multiple linear regression to predict ABC score.
| Variables | Simple Regression | Multiple Regression | ||
|---|---|---|---|---|
| (r) | p-Value | Adjusted R2 | p-Value | |
| Age (years) | −0.126 | 0.349 | - | - |
| BMI (kg/m2) | 0.009 | 0.947 | - | - |
| Days with instability | −0,620 | 0.001 | 0.373 | 0.003 |
| CSI | −0.398 | 0.002 | NS | NS |
| PCS | −0.317 | 0.016 | NS | NS |
| TSK | −0.524 | 0.001 | 0.483 | 0.017 |
| DHI | −0.600 | 0.001 | 0.527 | 0.002 |
| Speed (mm/sec) | ||||
| OE | 0.128 | 0.350 | - | - |
| CE | 0.158 | 0.249 | - | - |
| RMSX (mm) | ||||
| OE | −0.071 | 0.606 | - | - |
| CE | −0.014 | 0.920 | - | - |
| RMSY (mm) | ||||
| OE | 0.117 | 0.394 | - | - |
| CE | 0.072 | 0.601 | - | - |
| X mean (mm) | ||||
| OE | 0.092 | 0.504 | - | - |
| CE | 0.027 | 0.842 | - | - |
| Y mean (mm) | ||||
| OE | 0.090 | 0.515 | - | - |
| CE | 0.053 | 0.700 | - | - |
| SVV | −0.073 | 0.587 | - | - |
ABC: activities-specific balance confidence scale; BMI: body mass index; CE: closed eyes; CSI: central sensitization inventory; DHI: dizziness handicap inventory; FIQ: fibromyalgia impact questionnaire; NS: no significance; OE: open eyes; PCS: pain catastrophizing scale; RMSX: root mean squared amplitude of the center of pressure in mediolateral direction; RMSY: root mean squared amplitude of the center of pressure in antero-posterior direction; speed: speed of center of pressure; SVV: subjective visual vertical test; TSK: Tampa scale for kinesiophobia; X mean: mean position of the center of pressure in the mediolateral plane. Y mean: mean position of the center of pressure in the antero-posterior plane.