The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Agreement between Self-Reported Smoking and Cotinine Concentration in Adolescents: A Validation Study in Brazil
Abstract
Purpose To validate self-reported data on smoking in adolescents in comparison with cotinine concentration. Methods Two thousand two hundred nine seventh- and eighth-grade students from 32 public schools in Pelotas, Brazil. Adolescents were contacted twice--before and after an educational intervention--and samples of urine for cotinine analyses were taken. In this paper, only data from the baseline phase are presented. High-performance liquid chromatography was used for cotinine analysis. Two cutoff points for cotinine were used: 10 ng/mL and 30 ng/mL. Two self-reported smoking variables were used: at least one cigarette smoked in the previous 30 days; and daily smoking. Results The self-reported prevalence of smoking in the previous 30 days was 7.4%, and 0.9% of the adolescents reported to be daily smokers. Those who reported smoking in the previous 30 days presented mean cotinine values 10 times greater than those who reported to be nonsmokers. Using a cutoff of 10 ng/mL for cotinine, sensitivity of self-reported smoking was 16.3% (95% confidence interval [CI] 11.7; 20.9) and specificity was 93.6% (95% CI 92.8; 95.0). Using a cutoff of 30 ng/mL, sensitivity was 22.6% (95% CI 15.6; 29.6) and specificity was 93.7% (95% CI 92.6; 94.8). Conclusions Self-reported smoking presents low agreement with cotinine concentration, suggesting that adolescents underestimate tobacco consumption.
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Self-reported smoking prevalence is believed to be severely underestimating true smoking prevalence, especially in population subgroups or places where tobacco use may not be culturally acceptable.
“self-reported smoking prevalence is believed to be severely underestimating true smoking prevalence,72, 73, 74, 75 especially in population subgroups or places where tobacco use may not be culturally acceptable.”
Citations
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Reitsma, M. B., Fullman, N., Ng, M., Salama, J. S., Abajobir, A., Abate, K. H., Abbafati, C., Abera, S. F., Abraham, B., Abyu, G. Y., et al. (2017) · The Lancet · doi:10.1016/s0140-6736(17)30819-x · Cited by 2,028
School‐based programmes for preventing smoking
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Prevalence of alcohol and tobacco use among Brazilian adolescents: a systematic review
Barbosa Filho, V. C., Campos, W. D., & Lopes, A. D. S. (2012) · Revista de Saúde Pública · doi:10.1590/s0034-89102012000500018 · Cited by 94
Metadata
- Authors
- Malcon, M. C., Menezes, A. M. B., Assunção, M. C. F., Neutzling, M. B., & Hallal, P. C.
- Affiliations
- Universidade Católica de Pelotas (BR)
- Universidade Federal de Pelotas (BR)
- Venue
- Journal of Adolescent Health
- Publisher
- Elsevier BV
- Published
- 2008-09
- Volume
- 43
- Issue
- 3
- Pages
- 226-230
- ISSN
- 1054-139X (ISSN-L)
- OpenAlex
- W2078356787
- Cited by
- 45
- References
- 3
- Citations by year
- 2023: 1 · 2022: 3 · 2020: 1 · 2018: 5 · 2017: 4 · 2016: 1 · 2015: 3 · 2014: 2 · 2013: 2 · 2012: 5
- FWCI
- 4.07
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Adolescent Health (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Wellcome Trust
- European Commission
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Smoking Behavior and Cessation
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Chronic Obstructive Pulmonary Disease (COPD) Research
- Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
- Keywords
- adolescent smoking, self-reported smoking, cotinine, urinary biomarkers, sensitivity and specificity, cut-off values, Pelotas, Brazil
- MeSH terms
- Adolescent, Brazil, Cotinine, Female, Health Surveys, Humans, Male, Smoking, Randomized Controlled Trials as Topic, Behavior, Addictive
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