Association between socio-economic status and hemoglobin A1c levels in a Canadian primary care adult population without diabetes

BMC Family Practice

Research Article

Rahim Moineddin¹  Christopher Meaney¹  David White²  Ambreen Moazzam²  Michelle Greiver²  Babak Aliarzadeh²  Paul Belanger³  Kieran M Moore⁴ 

[1] Department of Family and Community Medicine, University of Toronto, 500 University Avenue, 5th Floor, M5G 1 V7, Toronto, ON, Canada;Department of Family and Community Medicine, University of Toronto, 500 University Avenue, 5th Floor, M5G 1 V7, Toronto, ON, Canada;North York General Hospital, 4001 Leslie St, M2K 1E1, Toronto, ON, Canada;Public Health Informatics Group, Kingston, Frontenac, Lennox & Addington Public Health, 221 Portsmouth Avenue, K7M 1 V5, Kingston, ON, Canada;Public Health Informatics Group, Kingston, Frontenac, Lennox & Addington Public Health, 221 Portsmouth Avenue, K7M 1 V5, Kingston, ON, Canada;Department of Emergency Medicine, Queen’s University, K7L 3 N6, Kingston, ON, Canada;

关键词: Electronic Medical Record;    Incident Diabetes;    Social Deprivation;    Income Quintile;    Material Deprivation;   

DOI  :  10.1186/1471-2296-15-7

 received in 2013-06-03, accepted in 2014-01-03,  发布年份 2014

来源: Springer

【 摘 要 】

BackgroundHgb A1c levels may be higher in persons without diabetes of lower socio-economic status (SES) but evidence about this association is limited; there is therefore uncertainty about the inclusion of SES in clinical decision support tools informing the provision and frequency of Hgb A1c tests to screen for diabetes. We studied the association between neighborhood-level SES and Hgb A1c in a primary care population without diabetes.MethodsThis is a retrospective study using data routinely collected in the electronic medical records (EMRs) of forty six community-based family physicians in Toronto, Ontario. We analysed records from 4,870 patients without diabetes, age 45 and over, with at least one clinical encounter between January 1st 2009 and December 31st 2011 and one or more Hgb A1c report present in their chart during that time interval. Residential postal codes were used to assign neighborhood deprivation indices and income levels by quintiles. Covariates included elements known to be associated with an increase in the risk of incident diabetes: age, gender, family history of diabetes, body mass index, blood pressure, LDL cholesterol, HDL cholesterol, triglycerides, and fasting blood glucose.ResultsThe difference in mean Hgb A1c between highest and lowest income quintiles was -0.04% (p = 0.005, 95% CI -0.07% to -0.01%), and between least deprived and most deprived was -0.05% (p = 0.003, 95% CI -0.09% to -0.02%) for material deprivation and 0.02% (p = 0.2, 95% CI -0.06% to 0.01%) for social deprivation. After adjustment for covariates, a marginally statistically significant difference in Hgb A1c between highest and lowest SES quintile (p = 0.04) remained in the material deprivation model, but not in the other models.ConclusionsWe found a small inverse relationship between Hgb A1c and the material aspects of SES; this was largely attenuated once we adjusted for diabetes risk factors, indicating that an independent contribution of SES to increasing Hgb A1c may be limited. This study does not support the inclusion of SES in clinical decision support tools that inform the use of Hgb A1c for diabetes screening.

【 授权许可】

CC BY   
© Aliarzadeh et al.; licensee BioMed Central Ltd. 2014