Table 1.

Details of study samples in each study period

	Nurses	Doctors
Baseline data collection	3 wards 13 July 2005—2 March 2006	4 wards 6 July 2006—21 December 2006
Post-eMMS data collection	2 control and 1 intervention ward 13 August 2008—4 December 2008 Minimum of 9 months after intervention	2 control and 2 intervention wards 18 March 2009—13 July 2009 Minimum of 14 months after intervention
Number of staff observed	70 (30 pre: 8 new graduates, 15 RN, and 7 CNS; 40 post: 9 new graduates, 21 RN and 10 CNS)	59 (20 pre: 7 interns, 8 residents, and 5 registrars; 39 post: 13 interns, 13 residents, and 13 registrars)
Hours observed	276.90 h (pre: 133.17 h; post: 143.73 h)	356.26 h (pre: 150.88 h; post: 205.38 h)

CNS, clinical nurse specialists; eMMS, electronic medication management system; RN, registered nurses.