title: Predictive factors of alcohol and tobacco use in adolescents.
abstract: OBJECTIVE
  to analyze the effect of self-esteem, assertiveness, self-efficacy and resiliency on alcohol and tobacco consumption in adolescents.
  
  
  METHODS
  a descriptive and correlational study was undertaken with 575 adolescents in 2010. The Self-Esteem Scale, the Situational Confidence Scale, the Assertiveness Questionnaire and the Resiliency Scale were used.
  
  
  RESULTS
  the adjustment of the logistic regression model, considering age, sex, self-esteem, assertiveness, self-efficacy and resiliency, demonstrates significance in the consumption of alcohol and tobacco. Age, resiliency and assertiveness predict alcohol consumption in the lifetime and assertiveness predicts alcohol consumption in the last year. Similarly, age and sex predict tobacco consumption in the lifetime and age in the last year.
  
  
  CONCLUSIONS
  this study can offer important information to plan nursing interventions involving adolescent alcohol and tobacco users.
authors.affiliation: Facultad de Enfermería, Universidad Autónoma de Querétaro, Santiago de Querétaro, Mexico.
authors.forename: Alicia
authors.initials: A
authors.lastname: Alvarez-Aguirre
authors.affiliation: Facultad de Enfermería, Universidad Autónoma de Nuevo León, Nuevo León, Mexico.
authors.forename: María Magdalena
authors.initials: MM
authors.lastname: Alonso-Castillo
authors.affiliation: Escola de Enfermagem de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
authors.forename: Ana Carolina Guidorizzi
authors.initials: AC
authors.lastname: Zanetti
mesh_terms: D000293:Adolescent; D000428:Alcohol Drinking / Q000453:epidemiology* / Q000523:psychology*; D001242:Assertiveness; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D055500:Resilience, Psychological; D012649:Self Concept; D020377:Self Efficacy; D011795:Surveys and Questionnaires; D064424:Tobacco Use / Q000453:epidemiology* / Q000523:psychology*