Table 2.

Multivariate logistic regression analysis for factors associated with smoking cessation at 10-year follow-up in the MEC^a

Variable	aOR (95% CI)	P b
IPLC diagnosis (%)
No	1.00 (Referent)
Yesc	5.12 (3.38 to 7.98)	<.001
BMI (kg/m2)	0.97 (0.95 to 1.00)	.07
Age at baseline, y	1.03 (1.01 to 1.05)	.003
Pack-years	0.97 (0.96 to 0.98)	<.001
Family history of lung cancer, %
No	1.00 (Referent)
Yes	1.77 (1.08 to 2.95)	.03
Race (%)
White	1.00 (Referent)
African American	0.60 (0.39 to 0.92)	.02
Japanese American	0.89 (0.60 to 1.33)	.58
Latino	0.57 (0.35 to 0.92)	.02
Native Hawaiian	0.51 (0.31 to 0.84)	.009
Other	1.18 (0.52 to 2.75)	.70

^aBased on n = 986 patients who were 1) current smokers at baseline, 2) had 10-year follow-up information, and 3) were diagnosed with IPLC between 1993 and 2017. aOR = adjusted odds ratio; CI = confidence interval; BMI = body mass index; IPLC = initial primary lung cancer; MEC = Multiethnic Cohort.

^bP value was calculated using the 2-sided Wald test.

^cIPLC diagnosis between baseline (1993-1996) and 10-year follow-up (2003-2008).