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Table 4 Comparison of postoperative BMD ratios at 6 months between each group

From: Effect of bisphosphonates in preventing femoral periprosthetic bone resorption after primary cementless total hip arthroplasty: a meta-analysis

ROI BMD ratios in the bisphosphonates group BMD ratios in the control group WMD [95 % CI] P of chi-square I 2 Selected model P for overall effect
1 98.035 89.227 8.422 4.313 12.531 0.001 88 % Random-effect model <0.001
2 97.881 93.224 4.142 0.611 7.672 0.001 85 % Random-effect model 0.021
3 97.974 95.954 1.930 0.668 3.193 0.041 52 % Random-effect model 0.003
4 99.810 98.305 1.357 0.188 2.525 0.039 53 % Random-effect model 0.023
5 99.638 98.188 0.564 −0.855 1.983 0.015 59 % Random-effect model 0.436
6 96.283 92.148 3.863 1.291 6.435 0.001 80 % Random-effect model 0.003
7 87.788 79.417 8.371 4.239 12.503 0.001 86 % Random-effect model <0.001