Trends in serious quit attempts in the United States, 2009–14

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Abstract

Background and aims

Quitting smoking is the most potent way to reduce the health risks associated with smoking cigarettes, and public health objectives in the United States include dramatic increases in the proportion of smokers making a serious quit attempt each year. The US Centers for Disease Control and Prevention (CDC) has, since 2000, set as its Healthy People 2020 objective to encourage 80% of smokers to make a serious quit attempt per year. This study assessed the trend in quit attempts from 2009 to 2014.

Design

We examined the percentage of US smokers making a serious quit attempt each year from 2009 to 2014 from the repeating cross-sectional National Health Interview Survey (NHIS).

Setting

United States.

Participants

The number of qualifying respondents per year ranged from 5748 in 2010 to 7219 in 2012, with a total of 40 362 respondents included in the analysis.

Measurements

Respondents were deemed to have made a serious quit attempt if they were either current smokers who reported that they stopped smoking for more than 1 day in the past 12 months because they were trying to quit smoking, or reported being former smokers (smoked 100+ cigarettes life-time, but now not smoking) who quit in the past year.

Findings

Analyses of trends from 2009 to 2014 showed an overall linear increase in quit attempts [odds ratio (OR) = 1.02, 95% confidence interval (CI) = 1.01–1.04, P = 0.0075], but also a quadratic trend (OR = 1.01, 95% CI = 1.00–1.02, P = 0.0189).

Conclusions

The proportion of US smokers making a serious quit attempt has increased since 2009, due to an upward trend since 2011. The 2014 serious quit attempt rate was 55.0%. These rates are still below the Healthy People 2020 objective of 80% of smokers making a serious quit attempt per year.

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