Table 1.
The baseline characteristics of patients before operation
| |
Total hip group |
Total knee group |
Total |
P value |
|---|---|---|---|---|
| n = 42 | n = 48 | n = 90 | ||
| Age (years) |
|
|
|
|
| Mean ± SD |
66.7 ± 9.7 |
71.5 ± 7.6 |
69.2 ± 8.9 |
0.0104 |
| Min, max |
43, 81 |
54, 82 |
43, 82 |
|
| Sex, n (%) |
|
|
|
|
| Male |
13 (31.0) |
7 (14.6) |
20 (22.2) |
0.0624 |
| Female |
29 (69.0) |
41 (85.4) |
70 (77.8) |
|
| Height (cm) |
|
|
|
|
| Mean ± SD |
163.2 ± 7.7 |
161.2 ± 7.7 |
162.2 ± 7.7 |
0.2427 |
| Min, max |
150, 183 |
150, 186 |
150, 186 |
|
| Weight (kg) |
|
|
|
|
| Mean ± SD |
63.3 ± 9.9 |
65.1 ± 10.3 |
64.3 ± 10.1 |
0.4208 |
| Min, max |
46, 82 |
43, 89 |
43, 89 |
|
| BMI (kg/m2) |
|
|
|
|
| Mean ± SD |
23.8 ± 3.2 |
24.4 ± 3.4 |
24.6 ± 3.5 |
0.1074 |
| Min, max | 19.1, 32.5 | 18.9, 35.8 | 18.9, 35.8 |
P value was calculated by Chi-square test for category variable and one-way ANOVA for continuous variable.