Table 2.

Etiology-specific positive rate for intraoperative bone culture of chronic osteomyelites (2003–2014)

Pathogenesis	Positive-rate(%)
	traumatic	adjacent infection	hematogenic	others
Year group
2003–2004	53.8	16.7	27.31	35.7
2005–2006	50.9	37.5	57.1	66.7
2007–2008	68.4	55.6	100.0	63.6
2009–2010	69.1	66.7	80.0	61.3
2011–2012	88.7	70.6	90.0	64.3
2013–2014	79.7	50.0	100.0	59.0
H value	28.081	6.900	16.686	4.191
P value	0.000*	0.228	0.005*	0.522

^*P < 0.05 statistically significant