Table 1 Age-specific positive rate for intraoperative bone culture of chronic osteomyelites (2003–2014)
| Â | 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 |