Table.

Smoking patterns at the postal resurvey about 3 years after recruitment, by smoking status reported at recruitment

	Never smoker at recruitment	Ex-smoker at recruitment	Current smoker at recruitment, by cigarettes per day
			<10	10–19	≥20	All amounts
Number of women	619 774	328 417	58 957	116 122	57 382	232 461
Percentage of current smokers when resurveyed	<0·1% (223/424 277)	2·2% (4756/217 248)	65·2% (19 417/29 773)	79·4% (44 401/55 953)	83·6% (23 229/27 795)	76·7% (87 047/113 521)
Age at which participant first started to smoke regularly, years	NA	18·7 (4·4)	20·2 (6·5)	18·9 (5·1)	18·1 (4·5)	19·1 (5·4)
Cigarettes smoked per day at resurvey	NA	NA*	8·0 (4·4)	14·8 (4·6)	22·2 (6·6)	15·2 (7·2)

Data are % of women (n/N), or mean (SD). NA=not applicable.

^*Mean consumption had been 13·5 (SD 9·2) cigarettes per day when these women last smoked.