Table 1.

Age distribution of the sample

					Age
		n	%	mean	SD	median	min	max
Sex	Department
Female	surgical departments	512	24.0	78.3	7.8	77	65	100
	internal medicine	525	24.7	80.9	7.6	82	65	101
	geriatrics	194	9.1	83.8	6.7	85	67	99
	total	1231	57.8	80.3	7.8	80	65	101
Male	surgical departments	438	20.6	75.7	6.7	75	65	95
	internal medicine	364	17.1	78.7	7.1	79	65	97
	geriatrics	97	4.6	82.4	6.3	83	69	95
	total	899	42.2	77.6	7.2	77	65	97
Department
surgical depts.		950	44.6	77.1	7.4	76	65	100
internal medicine		889	41.7	80	7.5	80	65	101
geriatrics		291	13.7	83.3	6.6	85	67	99
total		2130	100	79.2	7.7	79	65	101

Age in years, SD = standard deviation, surgical departments include: trauma/orthopedic surgery, urology, otorhinolaryngology, general surgery and plastic surgery