|By Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, CDC|
Smokeless tobacco causes cancers of the oral cavity, esophagus, and pancreas (1). CDC analyzed
Survey participants were considered currently working if, when asked about their employment status during the week before their interview, they responded, "working at a job or business," "with a job or business but not at work," or "working, but not for pay, at a family-owned job or business."^ Information on participants' current industry and occupation was coded by trained coders and grouped into 21 industry groups and 23 occupation groups.^ Current cigarette smokers were defined as respondents who reported having smoked >100 cigarettes during their lifetime and who reported currently smoking every day or some days. Current smokeless tobacco users were defined as respondents who reported having used chewing tobacco or snuff >20 times in their lifetime and who reported currently using chewing tobacco or snuff every day or some days. Dual users were defined as persons who were both current cigarette smokers and smokeless tobacco users. Sample weights were used to account for the complex sample design. Estimates with a relative standard error of >30% are not reported. Two-tailed t-tests were used to determine statistically significant differences between point estimates. Í
The estimated number of adults aged >18 years who were working during the week before the interview was 141 million in 2005 and 139 million in 2010. Current smokeless tobacco use prevalence among working adults did not significantly differ from 2005 (2.7%) to 2010 (3.0%)** (p=0.87). The prevalence of smokeless tobacco use among working adults was highest among those aged 18-24 years (3.6%) in 2005 and those aged 25-44 years (3.9%) in 2010, and among males (4.9% and 5.6%, in 2005 and 2010, respectively), non-Hispanic whites (3.5% and 4.0%), those with no more than a high school education (3.6% and 3.9%), and those living in the Midwest (3.8% and 3.3%) or South (3.1% and 3.9%) (Table 1).