1. Percentage of smokers making a quit attempt, for smokers of all ethnicities and non-Hispanic white smokers.
Percentage of smokers making a quit attempt, for smokers of all ethnicities and non-Hispanic white smokers. Data are from the National Health Interview Survey. The 1992 data were adjusted by imputation to account for missing values caused by skip pattern errors. From 1991 to 1995, only daily smokers were asked whether they had made a quit attempt. Results were weighted to be representative of the national population of adults aged 18 years and older in each survey year.
Shu-Hong Zhu et al. Tob Control 2012;21:
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