title: Trends in Social Inequality in Tooth Brushing among Adolescents: 1991-2014.
abstract: This study examines whether social inequality in tooth brushing frequency among adolescents changed from 1991 to 2014. The data material was seven comparable cross-sectional studies of nationally representative samples of 11- to 15-year-olds in Denmark with data about frequency of tooth brushing and occupation of parents. The total number of participants was 31,464, of whom 21.7% brushed their teeth less than the recommended 2 times a day. The absolute social inequality measured as prevalence difference between low and high social class increased from 7.7% in 1991 to 14.6% in 2014. The relative social inequality assessed by odds ratios for infrequent tooth brushing also increased from 1991 to 2014.
authors.affiliation: University of Southern Denmark, National Institute of Public Health, Copenhagen, Denmark.
authors.forename: Bjørn E
authors.initials: BE
authors.lastname: Holstein
authors.forename: Lotus Sofie
authors.initials: LS
authors.lastname: Bast
authors.forename: Carina Sjöberg
authors.initials: CS
authors.lastname: Brixval
authors.forename: Mogens Trab
authors.initials: MT
authors.lastname: Damsgaard
mesh_terms: D000293:Adolescent; D002648:Child; D003430:Cross-Sectional Studies; D003718:Denmark; D006801:Humans; D010290:Parents; D012923:Social Class; D014099:Toothbrushing