Expired Carbon Monoxide Levels in Self-Reported Smokers and Nonsmokers in Prison
作者： Karen Cropsey , Gloria Eldridge , Michael Weaver , Gabriela Villalobos , Maxine Stitzer
DOI: 10.1080/14622200600789684
关键词: Abstinence 、 Population 、 Receiver operating characteristic 、 Cutoff 、 Predictive value of tests 、 Demography 、 Breath carbon monoxide 、 Smoking cessation 、 Area under the curve 、 Gerontology 、 Medicine
摘要: Breath carbon monoxide (CO) is a convenient, widely used method for abstinence validation, with cutoffs of 8-10 ppm commonly employed. The goal the present study was to determine an appropriate CO cutoff differentiate nonsmokers and smokers within large sample (N = 374) female prisoners incarcerated at correctional facility in Virginia. Mean age population 34.5 years, 49.2% were White, 29% had less than high school education. Smoking prevalence 74.1% prison population. Examination levels versus smoking self-report using receiver operator characteristic (ROC) analysis revealed that 3 resulted best sensitivity (98.1%) specificity (95.8%). Overall ROC area under curve 99% (95% CI 98.2%-99.9%). This same optimal subgroups including Black light (<10 cigarettes/day) smokers. Results suggest higher may misclassify some as underestimate smoking.
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