. Author manuscript; available in PMC: 2019 Feb 1.

Published in final edited form as: J Cardiol. 2017 Sep 5;71(2):113–117. doi: 10.1016/j.jjcc.2017.07.014

Table 3.

Association between number of pack-years smoked and incident atrial fibrillation among smokers

Smoking Status	Participants (n)	AF(n)	Odds Ratio (95% Confidence Interval) per 10 pack-year increase
Smoking Status	Participants (n)	AF(n)	Model 1^*	Model 2^††
Current	1193	91	1.02 (0.93–1.12)	0.99 (0.90–1.08)
Former	4284	431	1.06 (1.02–1.11)	1.03 (0.99–1.08)
All Smokers	5477	522	1.05 (1.01–1.09)	1.03 (0.99–1.07)

AF, atrial fibrillation.

Model 1 adjusted for age, sex, race, education, income, geographic region.

^†

Model 2 adjusted for covariates in Model 1 plus systolic blood pressure, high-density lipoprotein cholesterol, total cholesterol, body mass index, diabetes, antihypertensive medications, left ventricular hypertrophy, prior cardiovascular disease, and statin use.