Localizing chronic Q fever: a challenging query

BMC Infectious Diseases

Table 5 Comparison of (adjustments to) modified Duke criteria: complete case series

	Modified Duke criteria [27]	Modified Duke criteria, including echocardiographic minor criteria [31]	Significance^†(comparison with modified Duke criteria) (p)^‡	Modified Duke criteria, including PCR as a major criterion [30]	Significance^†(comparison with modified Duke criteria) (p)^§
Definite IE	4 (9%)	8 (19%)	0.046	12 (28%)	0.005
Possible IE	20 (47%)	28 (65%)	0.046	14 (33%)	0.034
Rejected IE	19 (44%)	7 (16%)	0.001	17 (40%)	0.157
Total	43^*	43^*	-	43^*	-

^†Wilcoxon test, 2-tailed.
^‡Modified Duke criteria compared to ‘modified Duke criteria, including echocardiographic minor criteria’.
^§Modified Duke criteria compared to ‘modified Duke criteria, including PCR as a major criterion’.
^*Nine patients were not examined by echocardiography; the modified Duke criteria could therefore not be calculated.
Abbrevations: PCR polymerase chain reaction, IE infective endocarditis.

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