Multidrug-Resistant and Methicillin-Resistant Staphylococcus aureus (MRSA) in Hog Slaughter and Processing Plant Workers and Their Community in North Carolina (USA)

http://dx.doi.org/10.1289/ehp.1306741



Table 2. Distribution of non­susceptibility, multidrug-resistance, and MRSA among those positive for S. aureus.
Classification Total
[= 78 (%)]
Worker
[= 35 (%)]
Household member
[= 18 (%)]
Community resident
[= 25 (%)]
p-Valuea
ap-Value calculated with Fisher’s exact test. bS. aureus intermediate or resistant to any anti­microbial class. cPhenotypic MRSA defined as S. aureus resistant to cefoxitin. dMRSA identified by detection of mecA gene, genotypic MRSA is a subset of that detected phenotypically. eMDRSA denotes S. aureus non­susceptible to three or more of the anti­microbials used in this study or resistant to cefoxitin.
Non­susceptible S. aureusb 65 (83.3) 28 (80.0) 13 (72.2) 24 (96.0) 0.09
MRSA phenotypec 16 (20.5) 9 (25.7) 3 (16.7) 4 (16.0) 0.67
MRSA mecAd 9 (11.5) 5 (14.3) 2 (11.1) 2 (8.0) 0.90
MDRSAe 23 (29.5) 13 (37.1) 4 (22.2) 6 (24.0) 0.41