Table 2. Rates of sharps injuries per 1000 surgical procedures a year (2004–2009).

Hospital	Year	Number of NSI	Rate per 1000
Unit A	2007	6	3.5
	2008	3	1.8
Unit B	2004	3	0.4
	2005	9	1.3
	2006	11	1.6
	2007	10	1.4
	2008	3	0.4
	2009	7	1
Unit C	2007	4	0.8
	2008	5	1
	2009	7	1.4
Median		6	1.3