Table 6.

Meta regression analysis of heterogeneous factors of alanine aminotransferase (ALT).

Research Factors	Regression Coefficients	95% CI	t	p
publication year	0.612	−0.754~−1.979	0.99	0.345
sample size	−0.000	−0.043~0.043	0.00	1.000
intervention time	0.319	−0.548~1.186	0.81	0.435
diet	−1.375	−2.172~−0.577	−3.79	0.003
medication	0.962	−0.034~1.959	2.13	0.057