Abbreviation	Meaning
AA	arachidonic acid
adrenic acid	cis ω6 polyunsaturated (22:4) or 7,10,13,16-docosatetraenoic acid
CHD	coronary heart disease
CVD	cardiovascular disease
DGLA	dihomo gamma linolenic
DHA	docosahexaenoic acid
DPA-n6	docosapentaenoic n-6 acid
EPA	eicosapentaenoic acid
FA	fatty acid
FDR	False Discovery Rate
WHS	Women’s Health Study
GC	gas chromatography
RBC	gas chromatography-mass spectrometry with flame ionization decoupling in red blood cells
LC	liquid chromatography
LCMS	high-throughput liquid chromatography-mass spectrometry of circulating free FAs, oxylipins and bioactive lipids from plasma
plasma PL	LCMS2 plasma phospholipid assay
MI	myocardial infarction
MS	mass spectrometry
n-3	omega-3
n-6	omega-6
o3:6i	omega-3 to omega-6 index (=[EPA + DHA]/AA)
o3i	omega-3 index (=EPA + DHA)
SD	standard deviation
VITAL	Vitamin D and Omega-3 Trial