Retrospective Study
Copyright ©The Author(s) 2022.
World J Clin Cases. Jul 26, 2022; 10(21): 7324-7332
Published online Jul 26, 2022. doi: 10.12998/wjcc.v10.i21.7324
Table 5 Comparison of t-values ​​of hip bone mineral density between the two groups (mean ± SD)
Groups
Preoperative
After operation
1 mo
3 mo
6 mo
12 mo
Control group (n = 63)-2.61 ± 0.18-2.55 ± 0.19-2.53 ± 0.17a-2.34 ± 0.16a-2.08 ± 0.13a
Observation group (n = 63)-2.60 ± 0.15-2.21 ± 0.22a-2.02 ± 0.15a-1.61 ± 0.11a-1.37 ± 0.10a
t value0.3399.28417.85529.84234.360
P value0.7350.0000.0000.0000.000