Chronic obstructive pulmonary disease: Estimated prevalence by current industry, U.S. working adults aged 18 and over, 2004–2011
† Estimates with a relative standard error of greater than 50% are suppressed.
– Estimated confidence intervals not calculated because estimated prevalence of chronic obstructive pulmonary disease (COPD) among workers in this industry is zero.
a Estimates with a relative standard error of more than 30% but less than or equal to 50% are statistically unstable due to small sample size and should be used with caution as they do not meet the standards of reliability.
Note: Numbers presented are average annual estimates for the period 2004–2011. Prevalence estimates are weighted and are not age-adjusted. Working adults are those who were employed in the week prior to the survey. Estimated populations represent current U.S. workers aged 18 years and over by industry. Estimated totals do not add up due to rounding. See Appendix for information about data source and methods.
Source: National Center for Health Statistics National Health Interview Surveys 2004 to 2011.
Reference Number: 2014T10-09
Date Posted: April 2014
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