Table 2.

Association between smoking, BMI, physical inactivity, and composite lifestyle variables and overall survival among ovarian cancer cases, Ovarian Cancer Association Consortium¹.

Variables			Status		HR(95%CI)2	p-value
			Died	Alive
Smoking
Never			2075	1746	1.00(ref)
Former			584	371	1.10 (1.03–1.18)	<0.001
Current			1337	909	1.22 (1.11–1.34)	0.005
BMI at the time period preceding diagnosis
Underweight			77	63	1.04 (0.82–1.30)	0.75
Normal weight			1899	1415	1.00(ref)
Overweight			1139	872	1.02 (0.95–1.10)	0.58
Obese			881	676	1.16 (1.07–1.25)	<0.001
Recreational physical inactivity
Active			2895	2253	1.00(ref)
Inactive			1100	771	1.08 (1.01–1.16)	0.03
Combined exposure to smoking, overweight/obesity, and physical inactivity
Smoking	Overweight/Obese	Inactive
Never	No	No	762	641	1.00(ref)
Former	No	No	487	365	1.03 (0.92–1.15)	0.62
Current	No	No	187	118	1.19 (1.01–1.40)	0.03
Never	Yes	No	758	631	1.06 (0.95–1.17)	0.28
Never	No	Yes	198	156	1.03 (0.88–1.31)	0.73
Never	Yes	Yes	321	275	1.05 (0.92–1.19)	0.50
Former	Yes	No	491	344	1.16 (1.03–1.30)	0.01
Former	No	Yes	143	72	1.21 (1.01–1.45)	0.04
Former	Yes	Yes	198	122	1.35 (1.15–1.59)	<0.001
Current	Yes	No	159	110	1.28 (1.08–1.52)	0.005
Current	No	Yes	121	62	1.26 (1.04–1.54)	0.02
Current	Yes	Yes	94	65	1.37 (1.10–1.70)	0.004

¹Results for the individual models for each factor

²Cox proportional hazards model adjusted for age at diagnosis (continuous), stage, and study site