Table 4. The Prevalence of Resistant Genes in Staphylococci with Different Erythromycin Susceptibility.

	N	Resistant Genes, No. (%)							P Valuea
		ermA	ermB	ermC	msrA	ermA and ermC	ermC and msrA	Total
Erythromycin resistant	53								0.581
S. aureus	10	0	1 (10)	5 (50)	1 (10)	0	1 (10)	8 (80)
CoNS	43	2 (4.6)	1 (2.3)	14 (32.5)	10 (23.2)	1 (2.3)	8 (18.6)	36 (83.7)
Erythromycin susceptible	39								0.386
S. aureus	35	0	1 (2.8)	1 (2.8)	0	0	0	2 (5.7)
CoNS	4	0	0	1 (25)	0	0	0	1 (25)
Erythromycin intermediate	8								0.999
S. aureus	6	0	2 (33.3)	0	0	0	0	2 (33.3)
CoNS	2	0	0	2 (100)	0	0	0	2 (100)

Abbreviation: CoNS, coagulase-negative staphylococci.

^aChi-square test.