Table 3. Univariable logistic regression analysis for the discrimination between the lowest tertile vs. the middle and highest tertiles of maximum walking speed.
| Variable | Units of Increase | Lowest tertile vs.Middle and Highest tertiles | ||
|---|---|---|---|---|
| OR | (95% CI) | P value | ||
| Age (years) | 10 years | 1.83 | (1.15–2.91) | 0.01 |
| Height (cm) | 1 cm | 0.96 | (0.91–1.01) | 0.09 |
| BMI (kg / m2) | 1 kg / m2 | 0.99 | (0.89–1.10) | 0.85 |
| HD duration (years) | 1 year | 0.99 | (0.95–1.03) | 0.60 |
| Hemoglobin (g / dL) | 0.1 g / dL | 1.00 | (0.91–1.01) | 0.96 |
| Serum albumin (g / dL) | 0.1 g / dL | 0.46 | (0.13–1.72) | 0.25 |
| Diabetes mellitus (presence) | 1 presence | 1.74 | (0.82–3.70) | 0.15 |
| Peripheral arterial disease (presence) | 1 presence | 1.98 | (0.93–4.22) | 0.08 |
| Cardiac disease (presence) | 1 presence | 2.50 | (1.12–5.57) | 0.03 |
| Cerebrovascular disease (presence) | 1 presence | 1.73 | (0.72–4.15) | 0.22 |
| Peripheral neuropathy (presence) | 1 presence | 2.85 | (1.28–6.35) | 0.01 |
| Orthopedic abnormality (presence) | 1 presence | 0.76 | (0.35–1.63) | 0.48 |
| Joint disease (presence) | 1 presence | 0.87 | (0.41–1.87) | 0.73 |
| History of fracture (presence) | 1 presence | 5.00 | (1.90–13.13) | <0.01 |
| Others (presence) | 1 presence | 0.65 | (0.28–1.52) | 0.32 |
| The number of comorbidities | 1 | 4.03 | (1.83–8.86) | <0.01 |
| Leg strength (%BW) | 10%BW | 0.51 | (0.35–0.74) | <0.001 |
| Lower extremity flexibility (degrees) | 1 degree | 0.99 | (0.98–1.00) | 0.09 |
| Standing balance (seconds) | 10 seconds | 0.70 | (0.59–0.83) | <0.001 |
OR: odds ratio, CI: confidence interval, BMI: body mass index, HD: hemodialysis, BW: body weight.