- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03243136
The Association Between Food Insecurity and Incident Type 2 Diabetes in Canada: A Population-based Cohort Study
A pervasive and persistent finding is the health disadvantage experienced by those in food insecure households. While clear associations have been identified between food insecurity and diabetes risk factors, less is known about the relationship between food insecurity and incident type 2 diabetes.
The objective of this study is to investigate the association between household food insecurity and the future development of type 2 diabetes.
The investigators used data from Ontario adult respondents to the 2004 Canadian Community Health Survey, linked to health administrative data (n = 4,739). Food insecurity was assessed with the Household Food Security Survey Module and incident type 2 diabetes cases were identified by the Ontario Diabetes Database. Multivariable adjusted Cox proportional hazards models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for type 2 diabetes as a function of food insecurity.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Globally, there are over 200 million people living with type 2 diabetes. Aging populations, steadily increasing obesity rates, increases in sedentary behaviours, and decreases in diabetes-related mortality signal that the global prevalence of type 2 diabetes will continue to grow.
In Canada, type 2 diabetes is one of the most prevalent chronic conditions and is the 7th leading cause of mortality. Over the last decade, the prevalence of type 2 diabetes in Canada has increased by 72%, with 11 million Canadians currently living with diabetes or pre-diabetes. This number is expected to rise to 13.9 million (33% of Canadians) by 2026.
Much of the body of literature concerning type 2 diabetes focuses on management and control. Research that is geared towards prevention focuses heavily on the modification of individual risk behaviours, while less attention is given to the broader social determinants of increased type 2 diabetes risk.
Household food security is a broad measure of socioeconomic status that is not traditionally included in health research. Household food insecurity is experienced when there is uncertainty regarding, or disruption in, food intake or eating patterns by at least one member of a household due to financial constraints, resulting in inadequate or insecure access to food.
Food insecurity has been identified as a significant social and health problem in Canada . It was first measured in 2004, where it was estimated that 9.2% of Canadian households were food insecure. The most recent estimate from 2014 indicates that this number has risen to 12%, representing 3.2 million Canadians.
While there exists the perception that food insecurity leads to caloric restriction, food insecurity has been associated with lower nutrient intakes and consumption of a less healthy diet compared to those who are food secure. Prior evidence from cross-sectional studies has demonstrated that there is an association between food insecurity and chronic disease risk including hypertension, cardiovascular disease, and type 2 diabetes.
Though clear associations have been identified between food insecurity and diabetes risk factors such as dietary consumption, weight gain, and obesity, less is known about the direct relationship between food insecurity and incident type 2 diabetes. Moreover, limited studies have investigated this association longitudinally in a population-based sample.
Prospective, longitudinal assessment is critical as cross-sectional studies lack the ability to infer the direction of the relationship between food insecurity and type 2 diabetes. For example, the 'health selection' hypothesis has been studied, positing that a decline in health status may precede and ultimately cause downward social mobility and a decrease in income leading to food insecurity. Consequently, this theory presents evidence for reverse causation, by which poor health may precede financial difficulties, especially in cases where early age of diagnosis, and thus longer duration of disease, might predispose individuals to being in a food insecure household.
Current estimates of the future health consequences associated with food insecurity are needed to inform health decision-makers of potential areas for upstream intervention to alleviate the burden type 2 diabetes places on the Canadian healthcare system. Data linkages provide a novel opportunity to study this relationship in a prospective, population-based sample. Accordingly, the objectives of this study are to estimate the risk of type 2 diabetes as a function of food insecurity in the Canadian population, and to investigate the extent to which this association may be mediated by obesity.
Study Type
Enrollment (Actual)
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Type 2 diabetes
Time Frame: 2004-2016
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Incident type 2 diabetes
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2004-2016
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Christopher Tait, PhD(c), University of Toronto - Dalla Lana School of Public Health
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- PROTOCOL REFERENCE # 32143
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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