Table 2.

Study design and duration of observations

Specialty	Clinical units	No of observations	Mean Duration (SD)
Surgery	Ward (4 wards)	8	8:43:14 (0:25:20)
	Emergency Ward	6	8:03:44 (2:37:53)
	Operating room	3	8:28:49 (0:02:41)
	Sum	17	143:34:50
Internal Medicine	Ward (4 wards)	12	8:24:56 (0:34:35)
	Emergency Ward	3	7:21:06 (2:09:38)
	Intensive Care Unit	3	12:10:22 (1:42:52)
	Sum	18	159:33:47

Note: Time [hh:mm:ss]; SD Standard Deviation