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Recent Trends In Exposure To Secondhand Smoke In The United States Population, Chieh-I Chen, Tanya Burton, Christine L. Baker, Vera Mastey, David M. Mannino
Recent Trends In Exposure To Secondhand Smoke In The United States Population, Chieh-I Chen, Tanya Burton, Christine L. Baker, Vera Mastey, David M. Mannino
David M. Mannino
Background Previous research using the National Health and Nutrition Examination Surveys (NHANES) data documented a significant downward trend in secondhand smoke (SHS) exposure between 1988 and 2002. The objective of this study was to assess whether the downward trend in exposure continued from 2001 through 2006.
Methods We analyzed data from the 2001-2006 NHANES to estimate exposure of nonsmokers to SHS. Geometric means of serum cotinine levels for all nonsmokers were computed.
Results Overall serum cotinine levels (95% Confidence Intervals) in 2001-2002, 2003-2004, and 2005-2006 were 0.06 ng/mL (0.05-0.07), 0.07 ng/mL (0.06-0.09), and 0.05 ng/mL (0.05-0.06), respectively. Subgroup analysis by …