Consistency and Recanting of Ever-Smoking Status Reported by Self and Proxy Respondents One Year Apart
The study examined consistency of reports concerning current and prior smoking behaviors. Data came from the 2002-2003 Tobacco Use Supplement to the Current Population Survey, where the current smoking behaviors and smoking history were reported by self- and proxy-respondents on two occasions, one year apart. The eversmoking status is reported consistently, overall: Kappa coefficient is 0.78 with the corresponding 95% confidence interval given by (0.77, 0.78). One specific type of inconsistency of prior reports was assessed for respondents who were identified as never smokers at the latter assessment and former or current smokers at the earlier assessment.