Food intake patterns associated with incident type 2 diabetes: the Insulin Resistance Atherosclerosis Study.
OBJECTIVE
Markers of hemostasis and inflammation such as plasminogen activator inhibitor-1 (PAI-1) and fibrinogen have been associated with risk of type 2 diabetes. We aimed to identify food intake patterns influencing this pathway and evaluate their association with incident diabetes.


METHODS
The Insulin Resistance Atherosclerosis Study cohort included 880 middle-aged adults initially free of diabetes. At the 5-year follow-up, 144 individuals had developed diabetes. Usual dietary intake was ascertained with a 114-item food frequency questionnaire. Using reduced rank regression, we identified a food pattern maximizing the explained variation in PAI-1 and fibrinogen. Subsequently, the food pattern-diabetes association was evaluated using logistic regression.


RESULTS
High intake of the food groups red meat, low-fiber bread and cereal, dried beans, fried potatoes, tomato vegetables, eggs, cheese, and cottage cheese and low intake of wine characterized the pattern, which was positively associated with both biomarkers. With increasing pattern score, the odds of diabetes increased significantly (Ptrend < 0.01). After multivariate adjustment, the odds ratio comparing extreme quartiles was 4.3 (95% CI 1.7-10.8). Adjustment for insulin sensitivity and secretion and other metabolic factors had little impact (4.9, 1.8-13.7).


CONCLUSIONS
Our findings provide support for potential behavioral prevention strategies, as we identified a food intake pattern that was strongly related to PAI-1 and fibrinogen and independently predicted type 2 diabetes.
Liese
Angela D
AD
Department of Epidemiology and Biostatistics and Center for Research in Nutrition and Health Disparities, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, USA. liese@sc.edu
Weis
Kristina E
KE
Schulz
Mandy
M
Tooze
Janet A
JA
D000328:Adult; D000368:Aged; D015415:Biomarkers; D001786:Blood Glucose / Q000187:drug effects / Q000378:metabolism; D015331:Cohort Studies; D003924:Diabetes Mellitus, Type 2 / Q000453:epidemiology*; D002149:Energy Intake; D005247:Feeding Behavior; D005260:Female; D005340:Fibrinogen / Q000378:metabolism; D005500:Follow-Up Studies; D005951:Glucose Tolerance Test; D006801:Humans; D015994:Incidence; D007249:Inflammation; D007328:Insulin / Q000494:pharmacology; D007333:Insulin Resistance; D008297:Male; D008875:Middle Aged; D017395:Plasminogen Activator Inhibitor 1 / Q000378:metabolism; D012044:Regression Analysis; D012307:Risk Factors; D011795:Surveys and Questionnaires
D015415:Biomarkers; D001786:Blood Glucose; D007328:Insulin; D017395:Plasminogen Activator Inhibitor 1; D005340:Fibrinogen