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

Table 6 Comparison of postoperative BMD ratios at 5 years between each group

ROI	BMD ratios in bisphosphonates group	BMD ratios in control group	WMD	[95 % CI]		P of chi-square	Selected model	P for overall effect
1	98.301	93.225	3.113	−7.234	13.461	0.364	Fixed-effect model	0.555
2	95.222	93.382	−0.391	−6.359	5.578	0.387	Fixed-effect model	0.898
3	95.092	96.161	−2.885	−6.893	1.123	0.508	Fixed-effect model	0.158
4	95.685	96.943	−2.756	−6.559	1.047	0.640	Fixed-effect model	0.155
5	95.570	96.829	−1.618	−5.633	2.398	0.750	Fixed-effect model	0.430
6	98.976	92.007	7.002	0.004	14.001	0.925	Fixed-effect model	0.050
7	79.444	69.561	9.664	1.754	17.575	0.852	Fixed-effect model	0.017

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