Table 2.

Associations between total testosterone level and related factors according to alcohol consumption and facial flushing

Variable	Total testosterone
	Non-drinkers (n=78)		Drinkers (n=236)		Flushers (n=96)		Non-flushers (n=140)
	β	P-value	β	P-value*	β	P-value*	β	P-value*
Age (y)	0.243	0.029	0.158	0.019	0.209	0.048	0.118	0.182
Waist circumference (cm)	-0.295	0.378	-0.250	<0.001	-0.276	0.008	-0.230	0.009
Hypertension	0.096	0.001	-0.137	0.045	-0.062	0.545	-0.182	0.049
Diabetes mellitus	-0.401	0.140	0.038	0.558	0.150	0.129	-0.034	0.693
Dyslipidemia	-0.160	0.011	-0.187	0.003	-0.164	0.099	-0.209	0.012
Current smoker	0.063	0.554	0.099	0.145	0.072	0.492	0.080	0.378
Regular exercise	-0.137	0.209	0.015	0.801	-0.034	0.716	0.017	0.835
Drinking amount (drinks/wk)	-	-	-0.071	0.273	-0.283	0.004	0.035	0.691
R2	0.316		0.185		0.258		0.206

One drink=14 g of alcohol.

β, standardized regression coefficients. R², explanatory power of variables on total testosterone.

^*P-values are calculated by multiple linear regression analysis.