ArticleBMC oral health2018
Validity of self-reported number of teeth in middle-aged Finnish adults: the Northern Finland Birth Cohort Study 1966.
Article in BMC oral health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- Factors associated with socioeconomic inequalities in the use of dental services among Brazilian older adults: an Oaxaca-Blinder decomposition analysis.BMC oral health · 2025Article
- A Cross-Sectional Study of Peri-Implant Diseases in a Random Norwegian Population: Prevalence, Risk Indicators, and Clinical Validation of Patient-Reported Outcomes.Clinical oral implants research · 2025Article
- Validity of the self-reported number of teeth in independent older people in Japan.BMC geriatrics · 2024Article
- Development of a nomogram for identifying periodontitis cases in Denmark.Scientific reports · 2024Article
- Association between shortened dental configurations and health outcomes: a scoping review.BMC oral health · 2024Article
- Periodontitis prevalence in patients with ulcerative colitis and Crohn's disease - PPCC: A case-control study.Journal of clinical periodontology · 2022Article
- The validity of self-reported number of teeth and edentulousness among Norwegian older adults, the HUNT Study.BMC oral health · 2022Article
- Self-Reported Oral Health, Oral Hygiene and Associated Factors in Lithuanian Adult Population, 1994-2014.International journal of environmental research and public health · 2020Article
- Relationship betweenBMJ open gastroenterology · 2019Article
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3 authors.
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Abstract
backgroundWe examined the validity of self-reported number of teeth in middle-aged adults by using representative cohort data to compare corresponding self-reported and clinical values.
methodsThis validity study is part of the representative 46-year-old follow-up of the Northern Finland Birth Cohort 1966 (NFBC1966) Study. Mailed questionnaires (n = 5950) requested information on self-reported number of teeth and background variables (education, tooth brushing and smoking), while clinical oral health examinations (n = 1891) assessed the number of teeth (the 'gold standard'). The main analyses compared the self-reported and clinical values for the number of teeth in 1669 participants. Scatterplot and Bland-Altman plot served for visual analyses, and alternative correlation coefficients (Pearson, Spearman, intraclass) for numerical comparisons separately for men and women, with stratification according to background variables.
resultsThe clinical assessment revealed that the mean value for the number of teeth was 27.46 (SD = 2.38), while the corresponding value based on self-reported information was 27.48 (SD = 2.78). According to the Bland-Altman plot, the mean difference between the clinical and self-reported values was - 0.02 (95% limits of agreement, LoA: - 3.37 to 3.32). The observed ranges of intraclass correlation coefficients (ICC) among men and women were 0.72 to 0.95 and 0.72 to 0.85, respectively, depending on the background variables.
conclusionsSelf-reported number of teeth in middle-aged Finnish adults agreed closely with the corresponding clinical measure.
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