Table 3. Demographic data for the year 2003 (n = 847).

	non-frequent		frequent attenders		total
	n = 742	%	n = 105	%	n = 847	%
Gender
female	470	63,3	62	59,0	532	62,8
male	272	36,7	43	41,0	315	37,2
Education
elementary school or less	155	20,9	33	31,4	188	22,2
vocational	163	22,0	34	32,4	197	23,3
secondary school	291	39,2	28	26,7	319	37,7
higher school or university	133	17,9	10	9,5	143	16,9
Age in years (Mean ± SD)	48,5±14,5		50,6±12,5		48,7±14,3