Table 3. Prevalence of Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA) among retail meats in Korea from 2013 to 2018

Category	Prevalence of isolates(%; No. of isolate-positive samples/ No. of tested samples)
	Domestic		Imported		Total		p-value¹⁾	p-value²⁾
	S. aureus	MRSA	S. aureus	MRSA	S. aureus	MRSA	p-value¹⁾	p-value²⁾
Beef	13.4(96/719)	0.3(2/719)	12.9(112/868)	0.2(2/868)	13.1(208/1,587)	0.3(4/1,587)	0.8502	1
Pork	15.1(101/671)	1.0(7/671)	20.9^*(165/789)	1.5^*(12/789)	18.2^*(266/1,460)	1.3(19/1,460)	0.0048	0.568
Chicken	33.2^*(219/659)	0.9(6/659)	15.1(84/558)	0.0(0/558)	24.9^*(303/1,217)	0.5(6/1,217)	<0.0001	0.0645
Total	20.3(416/2,049)	0.7(15/2,049)	16.3(361/2,215)	0.6(14/2,215)	18.2(777/4,264)	0.7(29/4,264)	0.0008	0.8333

Difference between the S. aureus positive proportions of domestic and imported meat by Chi-squared test.
Difference between the MRSA positive proportions of domestic and imported meat by Chi-squared test.
p<0.05, difference between the proportions of meat category by Chi-squared test.
MRSA, methicillin-resistant Staphylococcus aureus.