Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/90324
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Type: Journal article
Title: Undiagnosed diabetes from cross-sectional GP practice data: an approach to identify communities with high likelihood of undiagnosed diabetes
Author: Bagheri, N.
McRae, I.
Konings, P.
Butler, D.
Douglas, K.
Del Fante, P.
Adams, R.
Citation: BMJ Open, 2014; 4(7):e005305-1-e005305-10
Publisher: BMJ Publishing Group
Issue Date: 2014
ISSN: 2044-6055
2044-6055
Statement of
Responsibility: 
Nasser Bagheri, Ian McRae, Paul Konings, Danielle Butler, Kirsty Douglas, Peter Del Fante, Robert Adams
Abstract: OBJECTIVES: To estimate undiagnosed diabetes prevalence from general practitioner (GP) practice data and identify areas with high levels of undiagnosed and diagnosed diabetes. DESIGN: Data from the North-West Adelaide Health Survey (NWAHS) were used to develop a model which predicts total diabetes at a small area. This model was then applied to cross-sectional data from general practices to predict the total level of expected diabetes. The difference between total expected and already diagnosed diabetes was defined as undiagnosed diabetes prevalence and was estimated for each small area. The patterns of diagnosed and undiagnosed diabetes were mapped to highlight the areas of high prevalence. SETTING: North-West Adelaide, Australia. PARTICIPANTS: This study used two population samples-one from the de-identified GP practice data (n=9327 active patients, aged 18 years and over) and another from NWAHS (n=4056, aged 18 years and over). MAIN OUTCOME MEASURES: Total diabetes prevalence, diagnosed and undiagnosed diabetes prevalence at GP practice and Statistical Area Level 1. RESULTS: Overall, it was estimated that there was one case of undiagnosed diabetes for every 3-4 diagnosed cases among the 9327 active patients analysed. The highest prevalence of diagnosed diabetes was seen in areas of lower socioeconomic status. However, the prevalence of undiagnosed diabetes was substantially higher in the least disadvantaged areas. CONCLUSIONS: The method can be used to estimate population prevalence of diabetes from general practices wherever these data are available. This approach both flags the possibility that undiagnosed diabetes may be a problem of less disadvantaged social groups, and provides a tool to identify areas with high levels of unmet need for diabetes care which would enable policy makers to apply geographic targeting of effective interventions.
Keywords: Epidemiology; Primary Care; Public Health
Rights: This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work noncommercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http:// creativecommons.org/licenses/by-nc/4.0/
RMID: 0030024677
DOI: 10.1136/bmjopen-2014-005305
Appears in Collections:Public Health publications

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