Table 1.

Percent smoking in women, men, and their ratio in Canada and Denmark by birth cohort.

Birth Cohort		% ever smokers
Canada	Female	Male	F:M Ratio
1931–35	42.50*	82.60	0.51
1936–40	42.20	81.50	0.52
1941–45	42.60	62.40	0.68
1946–50	42.50	57.20	0.74
1951–55	41.60	54.10	0.77
1956–60	46.40	50.70	0.92
1961–65	41.60	40.70	1.02
1966–70	35.20	35.80	0.98
1971–75	30.10	31.60	0.95
1976–80	20.90**	19.60**	1.07
Denmark
1931–35	64.20	81.00	0.79
1936–40	57.90	75.50	0.77
1941–45	56.50	72.70	0.78
1946–50	55.60	69.90	0.80
1951–55	56.20	64.60	0.87
1956–60	54.70	55.00	0.99
1961–65	50.20	49.30	1.02
1966–70	45.30	47.10	0.96
1971–75	41.80	42.00	1.00
1976–80	25.80**	24.10**	1.07

Unless noted, prevalence of smoking was for ages 20–25 or 25–29.

^*Prevalence of smoking at age 30–34

^**Prevalence of smoking at age 15–19