TABLE 3.

Pearson correlations between red blood cell (RBC) δ¹⁵N and RBC fatty acids for the complete sample of participants (n = 496) and the subset of participants with dietary intake data (n = 221)¹

		Sex		Age
	Total	Male	Female	<40 y	≥40 y
Complete sample (n = 496)
δ15N vs EPA	0.84	0.89	0.79	0.70	0.82
δ15N vs DHA2	0.75	0.79	0.72	0.69	0.69
Subset (n = 221)
δ15N vs EPA	0.80	0.83	0.79	0.66	0.82
δ15N vs DHA3	0.76	0.80	0.72	0.68	0.74

¹EPA, eicosapentaenoic acid; DHA, docosahexaenoic acid. P < 0.0001 for all coefficients.

²Spearman rank (ρ_s) correlations were 0.82, 0.85, and 0.80 for the total, male, and female groups, respectively, and 0.70 and 0.74 for the age groups <40 and ≥40 y, respectively.

³Spearman rank (ρ_s) correlations were 0.79, 0.82, and 0.77 for the total, male, and female groups, respectively, and 0.68 and 0.79 for the age groups <40 and ≥40 y, respectively.