Evaluating the validity of self-reported smoking in Mexican adolescents
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...
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| Format: | Article |
| Language: | English |
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BMJ Publishing Group
2015-10-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/5/10/e007485.full |
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| author | James F Thrasher Mauricio Hernandez-Avila Luz Myriam Reynales-Shigematsu Tonatiuh Barrientos-Gutiérrez Eduardo Lazcano-Ponce María del Carmen Valladolid-López Ingris Peláez-Ballestas |
| author_facet | James F Thrasher Mauricio Hernandez-Avila Luz Myriam Reynales-Shigematsu Tonatiuh Barrientos-Gutiérrez Eduardo Lazcano-Ponce María del Carmen Valladolid-López Ingris Peláez-Ballestas |
| author_sort | James F Thrasher |
| collection | DOAJ |
| description | 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 stable across gender. Parental smoking status moderated the validity of self-report, which had lower sensitivity in adolescents with non-smoking parents (86.7%) than in adolescents with smoking parents (96.6%). Sensitivity and specificity increased with smoking frequency.Conclusions This first validation study of self-reported current smoking used in the GYTS among Mexican adolescents suggests that self-reported smoking in the past 30 days is a valid and stable indicator of current smoking behaviour. This measure appears suitable for public health research and surveillance. |
| format | Article |
| id | doaj-art-9be0fb0353ca40bdb4aeac454054e60a |
| institution | Kabale University |
| issn | 2044-6055 |
| language | English |
| publishDate | 2015-10-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj-art-9be0fb0353ca40bdb4aeac454054e60a2025-02-11T15:25:11ZengBMJ Publishing GroupBMJ Open2044-60552015-10-0151010.1136/bmjopen-2014-007485Evaluating the validity of self-reported smoking in Mexican adolescentsJames F Thrasher0Mauricio Hernandez-Avila1Luz Myriam Reynales-Shigematsu2Tonatiuh Barrientos-Gutiérrez3Eduardo Lazcano-Ponce4María del Carmen Valladolid-López5Ingris Peláez-Ballestas61National Institute of Public Health, Cuernavaca, MexicoDirección de Prestaciones Económicas y Sociales, Mexican Institute of Social Security, Mexico City, Mexico2 Departamento de Prevención y Control de Tabaquismo, Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico1National Institute Of Public Health, MexicoInstituto de Salud Pública de México, Morelos, México1National Institute of Public Health, Cuernavaca, Mexico3 Rheumatology, Hospital General de México Dr. Eduardo Liceaga, Mexico City, MexicoObjectives 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 stable across gender. Parental smoking status moderated the validity of self-report, which had lower sensitivity in adolescents with non-smoking parents (86.7%) than in adolescents with smoking parents (96.6%). Sensitivity and specificity increased with smoking frequency.Conclusions This first validation study of self-reported current smoking used in the GYTS among Mexican adolescents suggests that self-reported smoking in the past 30 days is a valid and stable indicator of current smoking behaviour. This measure appears suitable for public health research and surveillance.https://bmjopen.bmj.com/content/5/10/e007485.full |
| spellingShingle | James F Thrasher Mauricio Hernandez-Avila Luz Myriam Reynales-Shigematsu Tonatiuh Barrientos-Gutiérrez Eduardo Lazcano-Ponce María del Carmen Valladolid-López Ingris Peláez-Ballestas Evaluating the validity of self-reported smoking in Mexican adolescents BMJ Open |
| title | Evaluating the validity of self-reported smoking in Mexican adolescents |
| title_full | Evaluating the validity of self-reported smoking in Mexican adolescents |
| title_fullStr | Evaluating the validity of self-reported smoking in Mexican adolescents |
| title_full_unstemmed | Evaluating the validity of self-reported smoking in Mexican adolescents |
| title_short | Evaluating the validity of self-reported smoking in Mexican adolescents |
| title_sort | evaluating the validity of self reported smoking in mexican adolescents |
| url | https://bmjopen.bmj.com/content/5/10/e007485.full |
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