title: Agreement between data obtained from repeated interviews with a six-years interval.
abstract: The objective of the study was to compare information collected through face-to-face interviews at first time and six years later in a city of Southeastern Brazil. In 1998, 32 mothers (N=32) of children aged 20 to 30 months answered a face-to-face interview with structured questions regarding their children's brushing habits. Six years later this same interview was repeated with the same mothers. Both interviews were compared for overall agreement, kappa and weighted kappa. Overall agreement between both interviews varied from 41 to 96%. Kappa values ranged from 0.00 to 0.65 (very bad to good) without any significant differences. The results showed lack of agreement when the same interview is conducted six years later, showing that the recall bias can be a methodological problem of interviews.
authors.affiliation: Programa de Pós-Graduação em Odontologia, Faculdade de Odontologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil. carolcm10@hotmail.com
authors.forename: Carolina Castro
authors.initials: CC
authors.lastname: Martins
authors.forename: Maria Letícia
authors.initials: ML
authors.lastname: Ramos-Jorge
authors.forename: Jaime Aparecido
authors.initials: JA
authors.lastname: Cury
authors.forename: Isabela Almeida
authors.initials: IA
authors.lastname: Pordeus
authors.forename: Saul Martins
authors.initials: SM
authors.lastname: Paiva
mesh_terms: D015982:Bias; D002675:Child, Preschool; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007407:Interviews as Topic / Q000379:methods*; D011939:Mental Recall; D013997:Time Factors; D014099:Toothbrushing / Q000706:statistics & numerical data*