title: Dietary intake of Brazilian adolescents.
abstract: OBJECTIVE
  To analyse the dietary intake of Brazilian adolescents and investigate its association with sociodemographic factors as well as health-risk and health-protective behaviours.
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  The study was based on data supplied by the National Survey of Schoolchildren's Health (2012) on sociodemographic factors, dietary intake and health-risk and health-protective behaviours of schoolchildren in Brazil. A nutritional scale was elaborated combining markers of healthy and unhealthy diets. Poisson regression analysis was applied to investigate the association between the sociodemographic factors and regular intake (≥5 times/week) of selected foods; linear regression analysis was applied to investigate the association of sociodemographic and behavioural factors with nutritional scale score.
  
  
  METHODS
  A total of 109 104 adolescents attending the ninth year of education at 2842 schools in Brazil.
  
  
  RESULTS
  Fewer than 30 % of the adolescents consumed raw or cooked vegetables on a regular basis, whereas more than one-third reported regular intake of sweets, soft drinks and sweet biscuits. Adolescents from the southern area and the oldest ones were those most exposed to inadequate dietary intake. The nutritional scale average score was higher in the students attending public school and exhibited a positive correlation with protective behaviours, such as being physically active, having meals with parents and eating breakfast, and a negative correlation with risk behaviours such as eating while studying or watching television and having smoked, drunk alcohol or used other drugs in the previous 30 d.
  
  
  CONCLUSIONS
  The results indicate an association between undesirable nutritional habits and other risk behaviours among Brazilian adolescents.
authors.affiliation: 1Federal University of Uberlandia,School of Medicine (Universidade Federal de Uberlândia, Faculdade de Medicina),Av. Pará nº 1720,Bloco 2U,Sala 20,Campus Umuarama,Bairro Umuarama,Uberlândia,MG,Brazil38.405-320.
authors.forename: Catarina Machado
authors.initials: CM
authors.lastname: Azeredo
authors.affiliation: 2University of Sao Paulo,School of Medicine,São Paulo,SP,Brazil.
authors.forename: Leandro Fornias Machado
authors.initials: LF
authors.lastname: de Rezende
authors.affiliation: 3University of Sao Paulo,School of Public Health,São Paulo,SP,Brazil.
authors.forename: Daniela Silva
authors.initials: DS
authors.lastname: Canella
authors.affiliation: 4Federal University of Minas Gerais,Nursing School,Belo Horizonte,MG,Brazil.
authors.forename: Rafael
authors.initials: R
authors.lastname: Moreira Claro
authors.affiliation: 5Rio de Janeiro State University,Nutrition Institute,Rio de Janeiro,RJ,Brazil.
authors.forename: Inês Rugani Ribeiro
authors.initials: IR
authors.lastname: de Castro
authors.affiliation: 2University of Sao Paulo,School of Medicine,São Paulo,SP,Brazil.
authors.forename: Olinda do Carmo
authors.initials: Odo C
authors.lastname: Luiz
authors.affiliation: 2University of Sao Paulo,School of Medicine,São Paulo,SP,Brazil.
authors.forename: Renata Bertazzi
authors.initials: RB
authors.lastname: Levy
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000208:ethnology; D017195:Adolescent Nutritional Physiological Phenomena / Q000208:ethnology; D001938:Brazil; D002648:Child; D002652:Child Behavior / Q000208:ethnology; D002664:Child Nutritional Physiological Phenomena / Q000208:ethnology; D003430:Cross-Sectional Studies; D004032:Diet / Q000009:adverse effects* / Q000208:ethnology; D005247:Feeding Behavior / Q000208:ethnology; D005260:Female; D006801:Humans; D008019:Life Style / Q000208:ethnology; D008297:Male; D018673:Nutrition Policy; D009749:Nutrition Surveys; D010349:Patient Compliance / Q000208:ethnology; D012574:Schools; D057566:Self Report
keywords: Risk factors
references.citation: Rev Saude Publica. 2013 Aug;47(4):656-65
references.pmid: 24346675
references.citation: Public Health Nutr. 2012 Mar;15(3):386-98
references.pmid: 21936969
references.citation: Public Health Nutr. 2011 Jan;14(1):5-13
references.pmid: 21211100
references.citation: MMWR Surveill Summ. 2012 Jun 8;61(4):1-162
references.pmid: 22673000
references.citation: Lancet. 2011 Jun 4;377(9781):1949-61
references.pmid: 21561658
references.citation: Public Health Nutr. 2014 Feb;17(2):369-75
references.pmid: 23308392
references.citation: Cad Saude Publica. 2008 Oct;24(10):2279-88
references.pmid: 18949230
references.citation: J Adolesc Health. 2006 May;38(5):575-82
references.pmid: 16635770
references.citation: J Behav Health Serv Res. 2014 Apr;41(2):140-52
references.pmid: 24114409
references.citation: Cad Saude Publica. 2014 May;30(5):1029-41
references.pmid: 24936819
references.citation: BMC Public Health. 2012 Oct 28;12:912
references.pmid: 23102008
references.citation: Cien Saude Colet. 2010 Oct;15 Suppl 2:3085-97
references.pmid: 21049149
references.citation: J Public Health Manag Pract. 2006 Nov;Suppl:S1-3
references.pmid: 17035893
references.citation: Gac Sanit. 2005 Sep-Oct;19(5):370-8
references.pmid: 16242095
references.citation: BMC Med Res Methodol. 2003 Oct 20;3:21
references.pmid: 14567763
references.citation: World Health Organ Tech Rep Ser. 2003;916:i-viii, 1-149, backcover
references.pmid: 12768890
references.citation: Am J Public Health. 2008 Jan;98(1):111-7
references.pmid: 18048778
references.citation: Public Health Nutr. 2013 Dec;16(12):2240-8
references.pmid: 23171687
references.citation: Int J Obes (Lond). 2005 Apr;29(4):373-80
references.pmid: 15768043
references.citation: Int J Environ Res Public Health. 2012 Oct 11;9(10):3575-87
references.pmid: 23202763
references.citation: Rev Saude Publica. 2012 Feb;46(1):6-15
references.pmid: 22183512
references.citation: Eur J Nutr. 2005 Mar;44(3):174-82
references.pmid: 15309435