A M Navarro1. 1. Department of Family and Preventive Medicine, University of California San Diego, La Jolla 92093-0622, USA. anavarro@ucsd.edu
Abstract
OBJECTIVE: To examine the rate of agreement between proxy and self report of smoking status in Hispanics compared with other ethnic groups. DESIGN: Data source is the 1990 California Tobacco Survey (CTS) which includes proxy and self reported smoking status. The CTS is a random digit dialed survey conducted in 57,244 households. A sample of 10,011 adults was included in the analyses. MAIN OUTCOME MEASURE: Percentages of agreement and disagreement between self report and report by other member of the household on smoking status. RESULTS: Cohen's kappa coefficients of agreement on smoking status between self report and proxy report was highest in non-Hispanic whites and African Americans (kappa = 0.91), followed by Asian Americans (kappa = 0.82) and Hispanics (kappa = 0.76). Among adults identified as current smokers by proxy, a lower percentage of Hispanics compared with non-Hispanics indicated that they were current smokers (odds ratio (OR) = 3.74, 95% confidence intervals (CI) = 3.28 to 4.20). Furthermore, agreement between proxy and self report was also lower in Hispanics of low acculturation compared with Hispanics with a high level of acculturation (OR = 0.40, 95% CI = 0 to 0.94). CONCLUSIONS: The agreement between self reported and proxy reported smoking status is higher among non-Hispanics compared with Hispanics. Smoking rates in different ethnic groups that are estimated by telephone surveys including proxy and self report might not be comparable.
OBJECTIVE: To examine the rate of agreement between proxy and self report of smoking status in Hispanics compared with other ethnic groups. DESIGN: Data source is the 1990 California Tobacco Survey (CTS) which includes proxy and self reported smoking status. The CTS is a random digit dialed survey conducted in 57,244 households. A sample of 10,011 adults was included in the analyses. MAIN OUTCOME MEASURE: Percentages of agreement and disagreement between self report and report by other member of the household on smoking status. RESULTS: Cohen's kappa coefficients of agreement on smoking status between self report and proxy report was highest in non-Hispanic whites and African Americans (kappa = 0.91), followed by Asian Americans (kappa = 0.82) and Hispanics (kappa = 0.76). Among adults identified as current smokers by proxy, a lower percentage of Hispanics compared with non-Hispanics indicated that they were current smokers (odds ratio (OR) = 3.74, 95% confidence intervals (CI) = 3.28 to 4.20). Furthermore, agreement between proxy and self report was also lower in Hispanics of low acculturation compared with Hispanics with a high level of acculturation (OR = 0.40, 95% CI = 0 to 0.94). CONCLUSIONS: The agreement between self reported and proxy reported smoking status is higher among non-Hispanics compared with Hispanics. Smoking rates in different ethnic groups that are estimated by telephone surveys including proxy and self report might not be comparable.
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