Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/95463
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Type: Journal article
Title: Age, period and cohort analysis of patient dental visits in Australia
Author: Ju, X.
Brennan, D.
Spencer, A.
Citation: BMC Health Services Research, 2014; 14(1):13-1-13-7
Publisher: BioMed Central
Issue Date: 2014
ISSN: 1472-6963
1472-6963
Statement of
Responsibility: 
Xiangqun Ju, David S Brennan and A John Spencer
Abstract: BACKGROUND: Understanding dentists' capacity to supply dental services over time is a key element in the process of planning for the future. The aim was to identify time trends and estimate age, period and cohort effects in patients' visits supplied per dentist per year. METHODS: Mailed questionnaires were collected from a random sample of Australian private general practice dentists. The response rates were 73%, 75%, 74%, 71%, 76% and 67% in 1983, 1988, 1993, 1998, 2003 and 2009, respectively. The time trends in the mean number of patient visits supplied per dentist per year (PPY) was described by using a standard cohort table and age-period-cohort analyses applying a nested general linear regression models approach. RESULTS: The mean number of PPY decreased across most age groups of dentists over the time of study. The age-period model showed that younger dentists (20-29 years) and older dentists (65-74 and 80-84 years) had lower PPY than middle-aged dentists, and the age-cohort model showed higher PPY among earlier cohorts, and lower PPY among more recent cohorts. CONCLUSION: The study found a period effect of declining PPY over the observation period. More recent cohorts of dentists provide lower numbers of PPY than earlier cohorts at similar ages, but the provision of PPY among these younger cohorts appeared to be stable as they moved into middle age.
Keywords: Age; Period; Cohort; Patient visits
Rights: © 2014 Ju et al.; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
RMID: 0030010873
DOI: 10.1186/1472-6963-14-13
Grant ID: http://purl.org/au-research/grants/nhmrc/627037
http://purl.org/au-research/grants/nhmrc/1031310
Appears in Collections:Dentistry publications

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