Quantitative alpha-defensin testing: Is synovial fluid dilution important?

Table 1 Demographics and laboratory results of the included patients

	Total	Aseptic cases	Infected cases
Sex
Male	9	4	5
Female	31	19	12
Age (range)	67.57 (47-85)	67.65 (47-85)	67.47 (51-84)
Laterality
Right knee	21	13	8
Left knee	19	10	9
Inflammatory disease
RA	8	5	3
Gout	2	0	2
Major Criteria
Sinus Tract	4	0	4
2 positive cultures	2	0	2
Minor criteria
CRP and ESR +	9	0	9
WBC count	15	1	14
PMN%	14	0	14
Hystological +	5	0	5
1 culture	12	1	11

RA: Rheumatoid arthritis; CRP: C-reactive protein; ESR: Erythrocyte sedimentation rate; WBC: White blood cells; PMN: Polymorphonuclear neutrophils.