Table 3.

The MDR rate of Klebsiella spp. isolated from milk samples: a bivariate meta-regression analysis.

	No. studies	No. isolatesa	No. MDRb	Positive percentage (95% CI)	Heterogeneity			Univariate meta-regression		Bivariate meta-regression
					χ2	p -value	I 2	p -value c	Coefficient (95% CI)	R 2 –economic development level	R 2 –population density
MDR rate								0.0214	−0.5828 (-1.0793 to−0.0863)	78.87%	87.51%
0	4	33	0	0.00% (0.00–0.00%)	0.89	0.83	0.0%
>0, < 0.5	8	860	129	15.02% (5.85–26.97%)	103.38	< 0.01	93.2%
> 0.5, < 1	2	112	73	63.13% (46.19–78.61%)	2.76	0.10	63.8%
1	6	81	81	100.0% (100.0–100.0%)	1.38	0.93	0.0%

^aNo. isolates: the number of Klebsiella isolates.

^bNo. MDR: the number of MDR Klebsiella isolates.

^cp-value: p < 0.05 is statistically significant.