Non-Daily Cigarette Smokers: Mortality Risks in the U.S.

ABSTRACT:

Introduction

Worldwide, an estimated 189 million adults smoke tobacco "occasionally" but not every day. Yet few studies have examined the health risks of non-daily smoking.

Methods

Data from the 1991, 1992, and 1995 U.S. National Health Interview Surveys, a nationally representative sample of 70,913 U.S. adults (aged 18-95 years) were pooled. Hazard ratios and 95% CIs for death through 2011 were estimated from Cox proportional hazards regression using age as the underlying time metric and stratified by 5-year birth cohorts in 2017.

Results

Non-daily smokers reported smoking a median of 15 days and 50 cigarettes per month in contrast to daily smokers who smoked a median of 600 cigarettes per month. Compared with never smokers, lifelong nondaily smokers who had never sm

SUBMITTER: Inoue-Choi M 

PROVIDER: S-EPMC7477821 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature