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. 2011 Jun 1;9(1):6. doi: 10.1186/1617-9625-9-6

Table 1.

Average Annual Pooled Prevalence of Smokeless Tobacco Use in the United States by Occupation: The 1987, 1991-1994, 1998, 2000, and 2005 National Health Interview Surveys

Workplace Smoking
Restrictions Present‡
Yes No

Occupation NHIS
Pooled
Sample
Size
US
Worker
Population
Estimate
US
Worker
Population
Estimate of
Smokeless
Tobacco
Use
Percent and
[95% CI]
Using
Smokeless
Tobacco
Percent and
[95% CI]
Using
Smokeless
Tobacco
Percent and
[95% CI]
Using
Smokeless
Tobacco

All Workers 125,838 103,073,889 3,635,403 3.53
[3.34-3.72]
1.89
[1.70-2.11]
3.27
[2.78-3.85]
White Collar 75,392 61,229,033 1,198,169 1.96
[1.82-2.11]
1.16
[0.99-1.36]
1.23
[0.84-1.81]

Service 18,062 13,893,418 328,908 2.37
[2.07-2.70]
1.73
[1.22-2.46]
1.72
[1.05-2.81]

Farm 3,002 2,462,646 258,945 10.51
[9.19-12.00]
6.54
[3.05-13.46]
9.36
[5.29-16.03]

Blue Collar 29,382 25,488,793 1,849,381 7.26
[6.79-7.75]
4.87
[4.17-5.68]
6.93
[5.75-8.34]

95% Confidence Interval

‡Respondents were asked this only in years 1991, 1994, and 2000 (n = 37,546)