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Evaluating The Validity Of Self-Reported Smoking In Mexican Adolescents, María Del Carmen Valladolid-López, Tonatiuh Barrientos-Gutiérrez, Luz Myriam Reynales-Shigematsu, Jim Thrasher, Ingris Peláez-Ballestas, Eduardo Lazcano-Ponce, Mauricio Hernández-Ávila
Evaluating The Validity Of Self-Reported Smoking In Mexican Adolescents, María Del Carmen Valladolid-López, Tonatiuh Barrientos-Gutiérrez, Luz Myriam Reynales-Shigematsu, Jim Thrasher, Ingris Peláez-Ballestas, Eduardo Lazcano-Ponce, Mauricio Hernández-Ávila
Faculty Publications
Objectives We aimed to evaluate the validity of the self-reported smoking indicator used in the Global Youth Tobacco Survey (GYTS).
Setting 43 middle and high-school classrooms from 26 schools were selected from Mexico City and Cuernavaca, Morelos.
Participants A total of 1257 students provided both a questionnaire and a urine sample.
Primary and secondary outcome Sensitivity and specificity of self-reported smoking compared to urinary cotinine. Validity indices were evaluated by subgroups of gender, social acceptability of smoking (ie, smoking parents or friends) and smoking frequency.
Results Sensitivity and specificity for current smoking were 93.2% and 81.7%, respectively. Validity indices remained …