title: Problematic cell phone use for text messaging and substance abuse in early adolescence (11- to 13-year-olds).
abstract: The aim of our study was to examine the association between problematic cell phone use (PCPU) for text messaging and substance abuse in young adolescents. This cross-sectional study was conducted on the basis of an ad hoc questionnaire, during the 2014-2015 school year in a province of the Veneto Region (Italy); it involved a sample of 1156 students in grades 6 to 8 (11 to 13 years old). A self-report scale based on the Short Message Service (SMS) Problem Use Diagnostic Questionnaire (SMS-PUDQ) was administered to assess the sample's PCPU. A multivariate logistic regression model was applied to seek associations between PCPU (as the dependent variable) and independent variables. The proportion of students who reported a PCPU increased with age in girls (13.5% in 6th grade, 16.4% in 7th grade, and 19.5% in 8th grade), but not in boys (14.3% in 6th grade, 18.0% in 7th grade, and 14.8% in 8th grade). Logistic regression showed that drunkenness at least once and energy drink consumption raised the odds of PCPU, whereas reading books, higher average school marks, and longer hours of sleep were associated with lower odds of PCPU in early adolescence.
  
  
  CONCLUSIONS
  our findings confirm a widespread PCPU for text messaging among early adolescents. The odds of PCPU is greater in young people at risk of other substance abuse behavior.
authors.affiliation: Novella Fronda Foundation, Foundation for Studies and Applied Clinical Research in the Field of Addiction Medicine, Via Marsala 42, 35122, Padova, Italy. luigi.gallimberti@studiogallimberti.it.
authors.forename: Luigi
authors.initials: L
authors.lastname: Gallimberti
authors.affiliation: Department of Molecular Medicine; Laboratory of Public Health and Population Studies, Institute of Hygiene, University of Padua, Via Loredan 18, 35128, Padova, Italy. alessandra.buja@unipd.it.
authors.forename: Alessandra
authors.initials: A
authors.lastname: Buja
authors.affiliation: Novella Fronda Foundation, Foundation for Studies and Applied Clinical Research in the Field of Addiction Medicine, Via Marsala 42, 35122, Padova, Italy. sonia.chindamo@gmail.com.
authors.forename: Sonia
authors.initials: S
authors.lastname: Chindamo
authors.affiliation: Novella Fronda Foundation, Foundation for Studies and Applied Clinical Research in the Field of Addiction Medicine, Via Marsala 42, 35122, Padova, Italy. alberto.terraneo@gmail.com.
authors.forename: Alberto
authors.initials: A
authors.lastname: Terraneo
authors.affiliation: Novella Fronda Foundation, Foundation for Studies and Applied Clinical Research in the Field of Addiction Medicine, Via Marsala 42, 35122, Padova, Italy. elena.marini@icloud.com.
authors.forename: Elena
authors.initials: E
authors.lastname: Marini
authors.affiliation: Department of Molecular Medicine; Laboratory of Public Health and Population Studies, Institute of Hygiene, University of Padua, Via Loredan 18, 35128, Padova, Italy. andrea.rabensteiner@studenti.unipd.it.
authors.forename: Andrea
authors.initials: A
authors.lastname: Rabensteiner
authors.affiliation: Department of Molecular Medicine; Laboratory of Public Health and Population Studies, Institute of Hygiene, University of Padua, Via Loredan 18, 35128, Padova, Italy. angela.vinelli@sanita.padova.it.
authors.forename: Angela
authors.initials: A
authors.lastname: Vinelli
authors.affiliation: Department of Molecular Medicine; Laboratory of Public Health and Population Studies, Institute of Hygiene, University of Padua, Via Loredan 18, 35128, Padova, Italy. luisjavier.gomezperez@unipd.it.
authors.forename: Luis Javier
authors.initials: LJ
authors.lastname: Gomez Perez
authors.affiliation: Department of Molecular Medicine; Laboratory of Public Health and Population Studies, Institute of Hygiene, University of Padua, Via Loredan 18, 35128, Padova, Italy. vincenzo.baldo@unipd.it.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Baldo
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D000435:Alcoholic Intoxication / Q000453:epidemiology; D040421:Cell Phone / Q000706:statistics & numerical data*; D002648:Child; D003430:Cross-Sectional Studies; D061215:Energy Drinks / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D007558:Italy; D016015:Logistic Models; D008297:Male; D012307:Risk Factors; D057566:Self Report; D013334:Students / Q000523:psychology* / Q000706:statistics & numerical data; D019966:Substance-Related Disorders / Q000523:psychology*; D011795:Surveys and Questionnaires; D060145:Text Messaging / Q000706:statistics & numerical data*
keywords: Adolescents; Alcohol consumption; Energy drink consumption; Problematic cell phone use; Substance abuse