National Study of Adult Oral Health 2017–18: participation and representativeness

Abstract

The National Study of Adult Oral Health (NSAOH) 2017–18 collected information from a sample of the Australian population aged 15 years and over. The Study comprised an interview questionnaire, completed by telephone or online, and an oral epidemiological examination among dentate participants. Participation in the Study was voluntary and therefore relied on the goodwill of selected participants. This paper provides a summary of participation rates for the Interview and Examination phases of the study. The potential for biased population estimates due to variation in participation rates is explored. The weighting procedure implemented to ensure the sample is representative of the target population is described and a comparison of the estimated population distributions derived from the weighted sample and the actual population distributions is provided for a range of socioeconomic characteristics. In summary, it can be concluded that estimates derived from the weighted Interview and Examination samples are valid estimates of the Australian population aged 15 years and over.

Australians support for policy initiatives addressing unhealthy diet: a population-based study

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Access to dental care barriers and poor clinical oral health in Australian regional populations

“…Statistical analyses were carried out on the 5,022 adults who were examined. Information on the NSAOH 2017‐18 study aims and methods 7 and study participation and weighting 9 can be found elsewhere. This study followed the STROBE Statement for reporting cross‐sectional studies.…”

Immigrants experience oral health care inequity: findings from Australia's National Study of Adult Oral Health

“…Detailed information on the sample design, study participation, reliability, sampling variability and development of population weights is reported elsewhere. 23,24 The project was reviewed and approved by The University of Adelaide's Human Research Ethics Committee.…”

“…Persons selected were invited to respond to a questionnaire either online or through a computer‐assisted telephone interview. Detailed information on the sample design, study participation, reliability, sampling variability and development of population weights is reported elsewhere 23,24 …”

“…Detailed information on the sample design, study participation, reliability, sampling variability and development of population weights is reported elsewhere. 23 , 24 …”