Table 3.

Egger’s tests of different parameters

	Coefficient	Standard error	t	P > |t|	[95% confidence interval]
VAS score	−0.612	1.017	−0.600	0.566	[−3.016648, 1.792176]
ODI score	10.550	7.103	1.490	0.276	[−20.01237, 41.11181]
Surgery time	3.177	1.427	2.230	0.061	[−0.1973189, 6.552231]
Injected cement volume	0.445	2.572	0.170	0.867	[−5.372733, 6.262107]
Cement leakage rate	0.206	0.181	1.140	0.293	[−0.2219323, 0.6332165]