Table 1.

Demographic data of patients included in the study.

	Number of subjects		Age range		Mean age
		%	From	To
Group 1
Women	25	71	37	80	68.1
Men	10	29	54	80	66.9
Total group 1	35		37	80	67.8
Group 2
Women	22	65	51	80	66.6
Men	12	35	43	78	60.4
Total group 2	34		43	80	64.4
Group 3
Women	34	100	23	77	47.4
Man	0	0	0
Total group 3	34		0	77	47.4
Group 4
Women	27	75	30	74	52.0
Men	9	25	40	75	59.0
Total group 4	36		30	75	53.8