Table 1.

Distribution of 3,603 participants with 6 or more examinations, by smoking status early (baseline, year 2, or year 5) in the study—CARDIA 1985–2011.

Early study smoking status	All participants		Ever smokers
	N	%	N	%
Never reported smoking during the study	1921	53.3	–	–
Current smoker at year 0	999	27.7	999	59.4
Non-smoker at year 0 but new smoker at year 2 or 5	177	4.9	177	10.5
Former smoker at year 0	506	14.1	506	30.1
Total	3603	100.00	1682	100.00