Table 3.

Univariate meta-regression analysis

Covariates	Beta [β] [95%CI]	P value	R 2 [%]
Study year	0.0179 [0.0059 −0.0298]	0.0034	46.11%
Location	−0.0073 [−0.0199 −0.0053]	0.2557	Nil
Host	−0.0085 [−0.0363 −0.0193]	0.5497	Nil
Sample number	0.0024 [−0.0017 −0.0064]	0.2623	20.98%
Positive sample	−0.0069 [−0.0230 −0.0093]	0.4037	Nil
AST method	−0.0106 [−0.0274 −0.0061]	0.2125	Nil
AST standard	0.0028 [−0.0016 −0.0072]	0.2140	15.22%
Quality of articles	−0.0384 [−0.1333 −0.0565]	0.4280	Nil
Resistance antibiotic	0.0097 [−0.0313 −0.0119]	0.3796	Nil