Table 2.

Life-long physical activity and risk of ischemic stroke in southern China.

Life-long physical activity	Crude OR	95% CI		P	Adjusted OR*	95% CI		P
Both genders						P for trend <.001
Never been much involved	1				1
Previously but not any more	1.10	(.76, 1.57)		.62	1.10	(.73, 1.64)		.65
Active just recently	0.59	(.33, 1.06)		.08	0.52	(.26, 1.02)		.06
Intermittently active	0.47	(.28, .79)		.01	0.40	(.22, .73)		.01
Always been involved	0.41	(.28, .60)		<.01	0.39	(.25, .59)		<.01
Male						P for trend <.001
Never been much involved	1				1
Previously but not any more	1.25	(.77, 2.04)		.37	1.26	(.73, 2.17)		.41
Active just recently	0.63	(.27, 1.46)		.28	0.57	(.22, 1.50)		.26
Intermittently active	0.60	(.31, 1.15)		.13	0.46	(.21, .99)		.05
Always been involved	0.31	(.18, .51)		<.01	0.29	(.16, .51)		<.01
Female						P for trend = .017
Never been much involved	1				1
Previously but not any more	0.84	(.48, 1.45)		.52	0.95	(.51, 1.78)		.87
Active just recently	0.55	(.24, 1.28)		.17	0.55	(.21, 1.46)		.23
Intermittently active	0.25	(.10, .66)		.01	0.25	(.08, .75)		.01
Always been involved	0.58	(.33, 1.00)		.05	0.57	(.30, 1.07)		.08

OR: odds ratio; CI: confidence interval.

*adjusting for age, (gender), BMI, education level, smoking status, smoking pack-years, alcohol drinking status, presence of hypertension, hyperlipidemia, and diabetes.