| Crowe classification | ||||
|---|---|---|---|---|
| Characteristic | Total (n=48) | IVa (n=22) | IVb (n=26) | P-value |
| Age (year)(mean±SD) | 66.3±7.9 | 68.2±8.2 | 64.7±7.6 | 0.131 |
| Women (%) | 91.7 | 95.5 | 88.5 | |
| Height (cm)(mean±SD) | 148.0±6.0 | 148.1±7.0 | 147.9±5.4 | 0.941 |
| Weight (kg)(mean±SD) | 52.2±7.3 | 49.8±6.0 | 54.1±7.7 | <0.05 |
| BMI(kg/m2)(mean±SD) | 23.8±3.1 | 22.7±1.9 | 24.8±3.6 | <0.05 |