Life Years Gained From Smoking-Cessation Counseling After Myocardial Infarction

Overview

Journal Am J Prev Med

Specialty Public Health

Date 2016 Oct 4

PMID 27692757

Citations 1

Authors

Emily M Bucholz

Adam L Beckman

Catarina I Kiefe

Harlan M Krumholz

Affiliations

Soon will be listed here.

Abstract

Introduction: Hospitalization for acute myocardial infarction (AMI) is an opportune time to counsel smokers to quit. Studies have demonstrated lower short-term mortality for counseled versus non-counseled smokers; yet, little is known about the long-term survival benefits of post-AMI smoking-cessation counseling (SCC).

Methods: Data from the Cooperative Cardiovascular Project, a prospective cohort study of elderly patients with AMI between 1994 and 1996 with >17 years of follow-up, were used to evaluate the association of SCC with short- and long-term mortality in smokers with AMI. Life expectancy and years of potential life gained were used to quantify the long-term survival benefits of SCC. Cox proportional hazards models with exponential extrapolation were used to estimate life expectancy.

Results: The analysis included 13,815 smokers, of whom 5,695 (41.2%) received SCC. Non-counseled smokers had higher crude mortality than counseled smokers over all 17 years of follow-up. After adjustment for patient and hospital characteristics, SCC was associated with a 22.6% lower 30-day mortality and a 7.5% lower mortality over 17 years. These survival differences produced higher life expectancy estimates for counseled smokers than non-counseled smokers at all ages, which resulted in average gains in life years of 0.13 (95% CI=-0.31, 0.56) to 0.58 (95% CI=0.25, 0.91) years, with the largest gains observed in older smokers.

Conclusions: SCC is associated with longer life expectancy and gains in life years in elderly smokers with AMI, supporting the importance of post-AMI counseling efforts.

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