Table 1.

Demographic data

Experiment 1:
	AS (n=23)	NS (n=23)	t(44)	p
Age	26.0	22.9	1.887	NS
Sex (% male)	65.2	39.1		NS*
Ethnicity (% white)	82.6	56.5		NS*
Experiment 2:
	SE (n=17)	NE (n=17)	t(32)	p
Age	21.5	22.9	0.934	NS
Sex (% male)	94.1	41.2		0.001*
Ethnicity (% white)	82.4	64.7		NS*
Experiment 3:
	AS (n=20)	NS (n=21)	t(39)	p
Age	26.0	23.8	1.218	NS
Sex (% male)	60.0	38.1		NS*
Ethnicity (% white)	75.0	33.3		0.012*

Reported p values represent the results of unpaired two-tailed comparisons between groups.

AS active smokers, NS non-smokers, SE sports enthusiasts, NE non-enthusiasts

^*p value represents results of a χ² test