Table 1. Patient characteristics according to culture for septic arthritis (negative or positive).

	Negative (N=25)	Positive (N=40)	p-value
Age at diagnosis	67 (19, 95)	66 (21, 96)	0.19
Males	11 (44.0%)	29 (72.5%)	0.022
Affected Joint (knee / hip / shoulder)			0.95
Ankle	3 (12.0%)	5 (12.5%)
Elbow	0 (0.0%)	1 (2.5%)
Hip	6 (24.0%)	7 (17.5%)
Knee	12 (48.0%)	21 (52.5%)
Shoulder	3 (12.0%)	5 (12.5%)
Wrist	1 (4.0%)	1 (2.5%)
Right laterality	14 (56.0%)	21 (52.5%)	0.78
Treated operatively	13 (52.0%)	39 (97.5%)	<0.001
Received antibiotics prior to aspiration	0 (0.0%)	12 (30.0%)	0.002
Continuous variables are summarized with median (range), and categorical variables are summarized with number (%).P-values less than 0.05 are considered statistically significant and are shown in bold.