Table 3.

Localization by bacteria species

	Cervical		Thoracic		Lumbar		Disseminated		p value
Intraoperative tissue
S. aureus (methicillin-susceptible)	32.7%	18	14.5%	8	40.0%	22	12.7%	7	< 0.001
S. aureus (methicillin-resistant)	0.0%	0	75.0%	3	25.0%	1	0.0%	0	0.090
S. hominis	0.0%	0	0.0%	0	100.0%	1	0.0%	0	0.828
S. epidermidis	15.4%	4	7.7%	2	57.7%	15	19.2%	5	0.070
E. faecalis	0.0%	0	25.0%	1	50.0%	2	25.0%	1	0.583
E. faecium	33.3%	1	33.3%	1	33.3%	1	0.0%	0	0.743
E. coli	14.3%	1	0.0%	0	85.7%	6	0.0%	0	0.293
P. aeruginosa	0.0%	0	50.0%	1	50.0%	1	0.0%	0	0.765
P. mirabilis	0.0%	0	0.0%	0	100.0%	1	0.0%	0	0.828
S. sanguinis	0.0%	0	0.0%	0	100.0%	2	0.0%	0	0.618
S. agalacatiae	0.0%	0	0.0%	0	100.0%	1	0.0%	0	0.828
S. mitis	50.0%	1	0.0%	0	50.0%	1	0.0%	0	0.540
M. tuberculosis	0.0%	0	75.0%	6	25.0%	2	0.0%	0	0.004
Candida spp.	40.0%	2	40.0%	2	20.0%	1	0.0%	0	0.250
Klebsiella spp.	0.0%	0	33.3%	1	66.7%	2	0.0%	0	0.803
Other	11.5%	3	15.4%	4	65.4%	17	7.7%	2	0.594

Blood culture
S. aureus (methicillin-susceptible)	31.4%	11	14.3%	5	42.9%	15	11.4%	4	0.026
S. aureus (methicillin-resistant)	16.7%	1	50.0%	3	33.3%	2	0.0%	0	0.392
S. hominis	0.0%	0	100.0%	1	0.0%	0	0.0%	0	0.332
S. epidermidis	3.8%	1	15.4%	4	69.2%	18	11.5%	3	0.164
E. faecalis	14.3%	1	14.3%	1	42.9%	3	28.6%	2	0.285
E. faecium	25.0%	1	50.0%	2	25.0%	1	0.0%	0	0.473
E. coli	0.0%	0	25.0%	2	62.5%	5	12.5%	1	0.657
P. mirabilis	0.0%	0	33.3%	1	66.7%	2	0.0%	0	0.803
S. agalactiae	0.0%	0	0.0%	0	100.0%	2	0.0%	0	0.618
S. mitis	0.0%	0	0.0%	0	100.0%	1	0.0%	0	0.828
M. tuberculosis	0.0%	0	100.0%	1	0.0%	0	0.0%	0	0.332
Candida spp.	0.0%	0	25.0%	1	75.0%	3	0.0%	0	0.714
Other	13.3%	2	20.0%	3	60.0%	9	6.7%	1	0.956
Overall distribution of spondylodiscitis	15.6%	33	22.7%	48	53.1%	112	8.5%	18

Statistical testing using Chi-squared test