TABLE 3.

Doctor Advised Respondent at Last Checkup About Risk of Drug Use, Smoking, and No Exercise, According to Whether the Doctor Asked About These Behaviors and Frequency of These Behaviors

Doctor Asked About	Drug Use			Smoking			Exercise
	Frequency	N	%	Frequency	N	%	Frequency	N	%
Yes	Never	535	53	Never	630	56	<1 time per month	102	69
	1–5 times per year	98	61	1–5 times per 30 d	57	61	Once per week	116	65
	6+ times per year	93	68	6+ times per 30 d	58	70	2+ times per week	778	63
			NSa			NSa			P < .05
No	Never	119	22	Never	140	21	<1 time per month	12	21
	1–5 times per year	33	20	1–5 times per 30 d	20	26	Once per week	16	32
	6+ times per year	20	17	6+ times per 30 d	9	12	2+ times per week	77	17
			NSa			NSa			NSa

NS, not significant.

^aχ² test across frequency.