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

Table 3 Comparison of postoperative BMD ratios at 3 months between each group

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	97.556	90.840	6.364	2.122	10.606	0	92 %	Random-effect model	0.003
2	96.275	93.488	2.479	1.886	3.072	0.564	0 %	Fixed-effect model	<0.001
3	97.041	95.413	1.309	0.824	1.794	0.673	0 %	Fixed-effect model	<0.001
4	100.207	98.036	2.349	0.505	4.193	0.003	78 %	Random-effect model	0.013
5	97.528	97.172	−0.619	−1.120	−0.119	0.138	46 %	Fixed-effect model	0.015
6	95.641	92.724	2.177	1.598	2.756	0.552	0 %	Fixed-effect model	<0.001
7	91.099	84.457	6.634	0.655	12.612	0.001	95 %	Random-effect model	0.030

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