March 2014

Volume 31, Issue 1

Investigation of bias related to non-return of consent for a dental epidemiological survey of caries among five-year-olds

Authors: G.M. Davies M. Robinson J. Neville G. Burnside
doi: 10.1922/CDH_3306Davies06


Estimates of caries levels derived from an epidemiological survey of five-year-olds in England were lower than expected. This survey used, for the first time, a consent method which involved parents providing positive, written consent for their child to be included in the survey. This contrasted to the previous method when negative consent was used. Aim: To interrogate the dataset to try and establish the reasons for the lower than expected estimates and explore the effect of non-return of parental consent, including the role of deprivation. Basic research design: Statistical analysis of an existing dataset and a sub-set of this dataset. Main outcome measures: Estimates of caries prevalence and severity in groups and sub-groups of a population-based, random sample of five-year-olds. Results: Hypotheses relating to possible changes in the process of data collection and analysis were rejected as reasons for the apparent reduction in disease estimates, as was the impact of oral and general health improvement programmes. Analysis of higher non-return levels on differences between past and current estimates and analysis of the associations between caries estimates, non-consent and summed deprivation measures based on home postcodes showed some relationships between these variables but could not identify a simple relationship. Conclusion: There is a more complex relationship between non-return of consent and disease levels than can be explained by deprivation alone. Key words: dental epidemiology, consent bias, socio-demographic indices


Other articles in this issue

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Editorial - Reviews of the literature: Expected standards 2-3 Download
Acknowledgement of Referees 4-4 Download
Dental Public Health in Action - Developing and implementing a fluoride varnish programme for young children in Bradford, UK 5-8 Download
The provision of dietary advice by dental practitioners: a review of the literature 9-14 Download
Dentinal hypersensitivity: a narrative review 15-20 Download
Investigation of bias related to non-return of consent for a dental epidemiological survey of caries among five-year-olds 21-26 Download
Comparison of oral health among older people with and without dementia 27-31 Download
Mothers’ sense of coherence and oral health related quality of life of preschool children in Udupi Taluk 32-36 Download
Development and psychometric validation of a Health Literacy in Dentistry scale (HeLD) 37-43 Download
Cross-cultural adaptation, validity and psychometric properties of the Spanish version of the dental satisfaction questionnaire 44-49 Download
The incidence of cleft lip and palate in a Kurd population: a prospective study 50-52 Download
The significance of motivation in periodontal treatment: Validity and reliability of the motivation assessment scale among patients undergoing periodontal treatment 53-56 Download
Oral health behaviours and perceptions reported by Indigenous Australians living in Darwin, Northern Territory 57-61 Download
Trends in the geographic distribution of dental clinics in Japan 62-64 Download


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