• Am J Prev Med · Apr 2023

    Patterns of Birth Cohort‒Specific Smoking Histories in Brazil.

    • Jamie Tam, Mohammed A Jaffri, Yoonseo Mok, Jihyoun Jeon, André S Szklo, Mirian C Souza, Theodore R Holford, David T Levy, Pianpian Cao, Luz M Sánchez-Romero, and Rafael Meza.
    • Department of Health Policy and Management, Yale School of Public Health, New Haven, Connecticut. Electronic address: jamie.tam@yale.edu.
    • Am J Prev Med. 2023 Apr 1; 64 (4 Suppl 1): S63S71S63-S71.

    IntroductionSmoking prevalence has decreased considerably in Brazil from 34.8% in 1989 to 12.6% in 2019 owing to the implementation of strong tobacco control policies. However, recent data show that the downward trend may be stagnating. Detailed analyses of historical smoking patterns by birth cohort could guide tobacco control decision making in Brazil.MethodsUsing the 2008 Global Adult Tobacco Survey and the 2013 and 2019 National Health Surveys, historical smoking patterns in Brazil were estimated, supplemented with data from the 2006‒2019 Surveillance System of Risk Factors for Chronic Diseases by Telephone Interviews. Age‒period‒cohort models with constrained natural splines were applied to estimate the annual probabilities of smoking initiation and cessation, current smoker prevalence, and mean cigarettes smoked per day by age, gender, and birth cohort. Analysis was conducted in 2021‒2022.ResultsCurrent smoker prevalence has declined considerably since the 1950 and 1955 birth cohorts for males and females, respectively, reflecting decreased smoking initiation and increased smoking-cessation probabilities over time. Among female cohorts born on or after 2000, smoking initiation may be increasing even as their smoking cessation has increased considerably. Mean cigarettes smoked per day has remained relatively constant across period and cohorts, showing only a minor decrease among males.ConclusionsThese detailed cohort-specific smoking parameters can be used to inform models that evaluate the impact of tobacco use and policies on long-term health outcomes and guide public health decision making in Brazil. Stagnant mean cigarettes smoked per day, increasing female smoking initiation, and limited improvement in male cessation among recent cohorts present challenges to tobacco control.Copyright © 2022 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved.

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