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. Author manuscript; available in PMC: 2018 Jul 3.
Published in final edited form as: Lancet Diabetes Endocrinol. 2017 Oct 12;5(12):965–974. doi: 10.1016/S2213-8587(17)30307-8

Figure 2. Pooled relative risks of type 2 diabetes according to interquintile range* of arachidonic acid biomarker, per lipid compartment.

Figure 2

Association between arachidonic acid and type 2 diabetes was assessed in multivariable models for each cohort, and the results were pooled using inverse-variance weighted fixed effects meta-analysis. If multiple biomarkers were available within a study, one was chosen for the overall analysis on the basis of its ability to reflect long-term dietary intake (in the following order of preference): adipose tissue, phospholipids, total plasma, and cholesterol esters. Similarly, data for erythrocyte phospholipids was preferred over plasma phospholipids if both were available from a cohort. References for all studies are shown in the appendix. RR=relative risk. HPFS=Health Professionals Follow-up Study. EPIC-Potsdam=European Prospective Investigation into Cancer (Potsdam). NHS=Nurses’ Health Study. WHIMS=Women’s Health Initiative Memory Study. FHS=Framingham Heart Study. EPIC-Norfolk=European Prospective Investigation into Cancer (Norfolk). MCCS=Melbourne Collaborative Cohort Study. 3C=Three City Study. PIVUS=Prospective Investigation of the Vasculature in Uppsala Seniors. MESA=Multi-Ethnic Study of Atherosclerosis. ARIC=Atherosclerosis Risk in Communities. CHS=Cardiovascular Health Study. AGES-Reykjavik=Age, Gene/Environment Susceptibility Study (Reykjavik). METSIM=Metabolic Syndrome in Men Study. IRAS=Insulin Resistance Atherosclerosis Study. KIHD=Kuopio Ischaemic Heart Disease Risk Factor Study. CCCC=Chin-Shan Community Cardiovascular Cohort Study. ULSAM-50=Uppsala Longitudinal Study of Adult Men-50. AOC=Alpha Omega Cohort. ULSAM-70=Uppsala Longitudinal Study of Adult Men-70.

*Difference between the midpoints of the first and fifth quintiles.