. 2015 Apr 2;2(2):ofv047. doi: 10.1093/ofid/ofv047

Table 3.

PCR-Analyzed IE Episodes

	IE Episodes
	NTM-Positive	NTM-Negative^a
Native valve	0	181
Bioprosthetic valve	5	51
Mechanical valve	0	51

Abbreviations: IE, infective endocarditis; NTM, nontuberculous mycobacteria; PCR, polymerase chain reaction.

^a Includes 16S rDNA negative PCR or positive for another bacterium. P values: P < .001 between bioprosthetic and native valves, P < .001 between bioprosthetic valves and both native and mechanical valves. Statistical association was estimated using Fisher's exact test.