Table 2.

Distribution of the study and control groups according to sex.

Group	Men		Women
	n	%	n	%
I	10	33.33	20	66.67
II	7	23.33	23	76.67
III	8	26.67	22	73.33
IV	7	23.33	23	76.67
K	7	23.33	23	76.67
Total	39	26	111	74