Does Smoking Intensity Predict Cessation Rates? A Study of Light-Intermittent, Light-Daily, and Heavy Smokers Enrolled in Two Telephone-Based Counseling Interventions

Author:

Ni Katherine1,Wang Binhuan2,Link Alissa R2ORCID,Sherman Scott E123

Affiliation:

1. Department of Medicine, New York University School of Medicine, New York, NY

2. Department of Population Health, New York University School of Medicine, New York, NY

3. Department of Medicine, VA New York Harbor Healthcare System, New York, NY

Abstract

Abstract Introduction Though many interventions have been shown to be effective in helping smokers quit, outcomes may differ between light and heavy smokers. We identified differences in baseline characteristics and post-intervention cessation rates among smoker groups at two safety-net hospitals. Methods We retrospectively analyzed cessation rates in 1604 patients randomized to either a quitline referral (1–2 telephone counseling sessions) or intensive counseling program (seven telephone sessions). Participants were stratified into light-intermittent (smoked on ≤24 of last 30 days), light-daily (smoked on >24/30 days, 1–9 cigarettes per day [CPD]), or heavy smokers (smoked on >24/30 days, ≥10 CPD). We compared baseline characteristics between smoker types using chi-squared tests, then identified predictors of 30-day abstinence using a multivariable model. Results Compared with light-daily and light-intermittent smokers, heavy smokers were more likely to be white, male, concomitant e-cigarette users, to have high-risk alcohol use, to have used quitting aids previously, to have current or lifetime substance use (excluding cannabis), and have lower confidence in quitting. However, in multivariable analysis, smoker type was not significantly associated with cessation. The statistically significant predictors of cessation at 6 months were higher confidence in quitting and enrollment in the intensive counseling intervention. Conclusions Smoker type (light-intermittent, light-daily, or heavy) does not independently predict success in a cessation program. However, smoker type is strongly associated with patients’ confidence in quitting, which may be one predictor of cessation. Implications This study of two safety-net hospitals emphasizes that the number of cigarettes smoked per day does not independently predict smoking cessation. Additionally, heavy smokers are at highest risk for the detrimental health effects of tobacco, yet have lower confidence and motivation to quit. Confidence in quitting may be one factor that affects cessation rates; however, further study is needed to identify which other attributes predict cessation. These findings suggest that smoker type may still be a useful proxy for predicting cessation and that interventions specifically designed for and validated in heavy smokers are needed to better aid these individuals.

Funder

National Institutes of Health

National Heart, Lung, and Blood Institute

National Institute on Drug Abuse

VA New York Harbor Healthcare System

Publisher

Oxford University Press (OUP)

Subject

Public Health, Environmental and Occupational Health

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