Table 1.

Population characteristics

Males
	Mean	SD	Range
Age [years]	28.9	5.6	22-46
Average salivary testosterone concentration [pg/mL]	178.9	44.1	108.1-276.6
Masturbation frequency [per 30-day month]	4.7	4.9	0-15.8
Intercourse frequency [per 30-day month]	6.1	4.2	0-13.78
Physical exercise frequency [per 30-day month]	5.9	5.9	0-20
Alcohol intake frequency [per 30-day month]	3.5	2.5	0-8.75
Females
	Mean	SD	Range
Age [years]	26.9	5.6	20-45
Cycle length [days]	29	2.5	25-34