Table 2. Distribution of serum fatty acid concentrations^a.

		Non-case			Case
	Common name	Q1	Median	Q3	Q1	Median	Q3	Diffb
18:2n6	Linoleic	24.22	27.12	30.40	23.78	26.73	29.70	*-0.55
16:0	Palmitic	22.07	23.77	25.77	22.56	24.37	26.44	* 0.65
18:1n9	Oleic	16.12	17.59	19.07	16.66	18.17	19.68	* 0.46
18:0	Stearic	7.83	8.54	9.18	7.67	8.42	9.20	-0.06
20:4n6	Arachidonic	7.02	8.27	9.67	6.63	8.01	9.43	*-0.31
16:1n7	7-Hexadecenoic	1.65	2.23	2.96	1.79	2.34	3.09	* 0.15
20:3n6	Dihomo-gamma-linolenic	1.71	2.05	2.40	1.75	2.03	2.34	-0.01
22:6n3	Docosahexaenoic	1.50	1.97	2.65	1.34	1.75	2.32	*-0.26
18:1n7	Vaccenic	1.29	1.47	1.69	1.31	1.49	1.68	0.01
14:0	Myristic	0.64	0.84	1.09	0.66	0.89	1.14	* 0.06
18:1t	(no common name)	0.56	0.75	1.03	0.60	0.80	1.05	* 0.05
20:5n3	Eicosapentaenoic	0.44	0.60	0.85	0.40	0.56	0.76	*-0.09
22:5n3	Docosapentaenoic	0.45	0.56	0.68	0.41	0.51	0.63	*-0.05
18:3n3	Alpha-linolenic	0.44	0.55	0.68	0.42	0.53	0.66	*-0.02
18:3n6	Gamma-linolenic	0.32	0.41	0.53	0.31	0.41	0.52	-0.01
16:1t	Palmitelaidic	0.27	0.33	0.38	0.28	0.33	0.39	0.001
22:4n6	Adrenic	0.15	0.30	0.43	0.15	0.29	0.42	*-0.005
17:0	Margaric	0.25	0.28	0.32	0.24	0.28	0.32	-0.003
20:2n6	Eicosadienoic	0.22	0.26	0.30	0.22	0.25	0.30	-0.004
22:5n6	(no common name)	0.19	0.25	0.32	0.19	0.24	0.31	*-0.012
15:0	Pentanoic	0.15	0.19	0.23	0.15	0.19	0.23	0.003
20:1n9	Eicosenoic	0.09	0.14	0.24	0.10	0.14	0.26	*0.004
20:4n3	Eicosatetraenoic	0.05	0.08	0.11	0.05	0.07	0.10	*-0.004
18:2tt	Linelaidic	0.02	0.03	0.06	0.02	0.04	0.07	* 0.005
24:1n9	Nervonic	0.00	0.00	0.04	0.00	0.00	0.05	-0.004

Q, quartile; Diff, difference; t, trans.

^aFatty acids are shown in order of median concentration of fatty acids among non-cases.

^bThe average of the differences between case and control serum fatty acid concentration.

^*Wilcoxon signed-rank test P ≤ 0.05.