Table 3.

Cox proportional hazards model of time to lung cancer mortality according to past participation in 3×/week strenuous physical activity at ages 18, 35, and 50 years

	Past participation in strenuous physical activity	No of. cases	No. of non-cases	HR1 (95% CI)	p Values
Age 18 yr	No	707	69,437	Ref.	0.32
	Yes	658	58,599	1.06 (0.95–1.18)
Age 35 yr	No	783	71,163	Ref.	0.50
	Yes	582	56,873	0.96 (0.87–1.07)
Age 50 yr	No	883	80,977	Ref.	0.75
	Yes	482	47,059	0.98 (0.88–1.10)

¹All physical activity models are adjusted for age, race/ethnicity, BMI, family history of cancer, personal history of cancer, history of asthma, history of emphysema or chronic bronchitis, smoking, education, alcohol intake, vitamin D use, hormone therapy, oral contraceptive use, NSAID use, hormone therapy trial arm, hysterectomy status, CAD trial arm, OS/CT, servings of fruit, vegetables, and red meat.