Table 1.

Distribution of age, joint infection origin, and type.

Evaluable	Percent of samples
parameters	( $n=\mathrm{1527}$ samples)
Age of patient
$\le \mathrm{18}$ years old	6 % (87)
19–55 years old	23 % (357)
$\ge \mathrm{56}$ years old	59 % (898)
Unknown	12 % (185)
Joint infection type
Native	57 % (873)
Prosthetic	26 % (398)
Unknown	17 % (256)
Joint type
Knee	54 % (826)
Hip	16 % (251)
Shoulder	5 % (79)
Elbow	4 % (57)
Spine	2 % (34)
Ankle	2 % (31)
Wrist	1 % (13)
Unknown	16 % (236)