Table 5.

Results of the forest plots for the number of patients with VCF at the 12- and 24-month follow-ups

Number of patients with VCF	Number of patients	Number of included studies	OR	95% CI	P value	χ2	I2	Effect model
Number of patients with VCF at the 12-month follow-up	105	2	0.07	0.01, 0.59	0.01	0.96	0%	Random effect
Number of patients with VCF at 24-month follow-up	128	2	0.20	0.07, 0.58	0.003	0.54	0%	Random effect