Table 3.

Sex distribution by study.

Study	Male		Female
	N	%	N	%
STUDY #1	69	69.0	31	31.0
STUDY #2	67	77.0	20	23.0
STUDY #3	70	80.5	17	19.5
STUDY #4	70	78.7	19	21.4
STUDY #5	92	76.0	29	24.0
Overall	368	76.0	116	24.0