Table 3.

The Cochran’s Q test of Mendelian randomization analyses for BMD and postural instability.

Exposure	Outcome	SNPs selection	method	Cochran’s Q test
				Q	Q_df	Q_pval
Postural instability	FN-BMD	Complete	IVW	45.283	46	0.465
			MR Egger	45.162	45	0.502
		Steiger filtering	IVW	30.673	41	0.880
			MR Egger	20.894	40	0.878
	LS-BMD	Complete	IVW	54.597	46	0.180
			MR Egger	53.897	45	0.170
		Steiger filtering	IVW	34.947	44	0.833
			MR Egger	34.872	43	0.806
	FA-BMD	Complete	IVW	53.178	49	0.316
			MR Egger	51.296	48	0.345
		Steiger filtering	IVW	43.623	46	0.572
			MR Egger	43.589	45	0.531