Table 1 Paired t-tests were used to compare differences with regard to the parameters within the three groups
Parameters | Group A(n = 30) | Group B(n = 46) | Group C(n = 11) | P |
|---|---|---|---|---|
Age(year) | 73.9 ± 10.2 | 76.4 ± 10.8 | 71.2 ± 8.4 | > 0.05 |
Gender(Female/Male) | 21/9 | 20/6 | 19/7 | > 0.05 |
BMD | −2.92 ± 0.46 | −2.88 ± 0.42 | − 2.96 ± 0.50 | > 0.05 |
PMMA(ml) | 4.2 ± 1.3 | 4.4 ± 1.5 | 3.8 ± 1.1 | > 0.05 |
Time(day) | 1.4 ± 0.563 | 1.31 ± 0.618 | 1.31 ± 0.549 | > 0.05 |
Degree | 1.70 ± 0.75 | 1.78 ± 0.758 | 1.76 ± 0.752 | > 0.05 |
VB | 1.93 ± 0.365 | 1.96 ± 0.469 | 2.0 ± 0.5 | > 0.05 |