Abstract 18066: Population-based Smoking Trends in the Elderly: The Minnesota Heart Survey
Introduction: The study of cardiovascular risk factors in the elderly is important for public health planning given the aging U.S. population. We present trends in smoking from 1990-2009 in a population-based sample of elderly residents, aged 75-84 years, of the greater Twin Cities, Minnesota.
Hypothesis: We hypothesized that the prevalence of “ever smoked” in the elderly increased between 1990 and 2009 but that the prevalence of current smoking decreased during this period due to successful quitting.
Methods: We examined population-based smoking trends using data from the Minnesota Heart Survey (MHS), a surveillance study of cardiovascular risk factors in the Minneapolis/Saint Paul metropolitan area. Restricting analyses to adults aged 75-84 years, we examined age-adjusted trends using generalized linear mixed models in the 4 most recent MHS surveys: 1990-92 (n = 268), 1995-97 (n = 318), 2000-02 (n = 142), and 2007-09 (n = 145).
Results: Subjects were predominantly women (range: 54%-68%) and white (98-100%), and the median age ranged from 77.4 to 78.9 years. The prevalence of current smoking was less than 8% in all surveys and did not change substantially over time (Figure). The prevalence of ever-smoked was consistent across surveys among men but increased from 34.5% to 45.7% among elderly women during this period. Among past smokers, men quit at an increasingly younger age across surveys (1990-92: 50.7 ± 1.9 years, 2007-09: 44.6 ± 2.1 years, p = 0.002). A similar trend was observed among female past smokers (1990-92: 56.0 ± 2.2, 2007-09: 45.7 ± 2.8, p = 0.002).
Conclusion: Between 1990 and 2009, the prevalence of current smoking among elderly men and women remained consistently low as a result of quitting and probable effects of selective mortality among smokers. The prevalence of ever smoked among elderly men was similar across surveys but increased among elderly women. Both men and women quit smoking at increasingly younger ages.
- © 2010 by American Heart Association, Inc.