Table 1.

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

	Positive-rate(%)
Age group (yr)	< 18	18–44	≥45
Year group (yr)
2003–2004	25.0	46.4	41.2
2005–2006	55.6	49.1	61.9
2007–2008	60.0	68.1	66.7
2009–2010	75.0	70.0	62.5
2011–2012	80.0	80.0	78.2
2013–2014	66.7	70.1	67.8
H value	10.530	18.270	8.811
P value	0.062	0.006*	0.117

^*P < 0.05 statistically significant