Table 1.

Multiple linear regression analysis of selected fatty acids in relation to lipophilic index, the Health Professionals Follow-up Study.^a

Variable	Melting Point	Plasma lipophilic index (n=838)				Erythrocyte lipophilic index (n=876)
		Mean	SD	Beta	SE	Mean	SD	Beta	SE
Saturated fatty acids
14:0	53.9	0.53	0.38	0.37	0.004	0.30	0.22	0.17	0.018
15:0	52.3	0.14	0.05	0.30	0.025	0.11	0.06	0.50	0.043
16:0	63.1	19.1	2.46	0.46	0.002	19.2	1.97	0.41	0.002
17:0	61.3	0.31	0.09	0.44	0.012	0.37	0.10	0.39	0.041
18:0	69.6	8.17	1.33	0.52	0.002	14.5	2.26	0.46	0.003
19:0	68.6	0.10	0.05	0.50	0.022	0.12	0.04	0.37	0.035
20:0	76.8	0.19	0.05	0.59	0.025	0.38	0.05	0.69	0.039
22:0	81.5	0.49	0.19	0.66	0.009	1.58	0.28	0.63	0.011
23:0	79.1	0.20	0.08	0.61	0.024	0.28	0.06	0.31	0.05
24:0	87.8	0.42	0.16	0.71	0.012	3.90	0.81	0.68	0.005
Monounsaturated fatty acids
16:1n-7	0.0	1.55	0.79	−0.20	0.003	0.46	0.23	−0.24	0.012
18:1n-7	15.0	1.65	0.29	−0.04	0.005	1.08	0.14	−0.18	0.016
18:1n-9	16.0	19.4	3.01	−0.03	0.002	13.1	2.07	−0.1	0.002
20:1n-9	23.3	0.15	0.07	−0.01NS	0.017	0.19	0.04	−0.05 NS	0.047
24:1n-9	42.8	0.54	0.23	0.26	0.007	3.77	0.80	0.18	0.004
Polyunsaturated fatty acids
18:2n-6	−5.0	30.6	4.45	−0.25	0.002	13.2	3.07	−0.33	0.002
18:3n-6	−11.2	0.42	0.15	−0.31	0.008	0.1	0.04	−0.54	0.042
20:4n-6	−49.5	7.29	1.78	−0.71	0.002	13.0	1.82	−0.81	0.003
18:3n-3	−11.2	0.60	0.24	−0.31	0.004	0.21	0.24	−0.37	0.008
20:5n-3	−54.1	0.65	0.48	−0.75	0.003	0.52	0.31	−0.84	0.007
22:6n-3	−44.2	1.75	0.77	−0.65	0.002	3.7	1.22	−0.76	0.002
Trans fatty acids
trans 16:1n-7	31.0	0.15	0.06	0.11	0.018	0.14	0.05	0.02 NS	0.05
trans 18:1	48.7	1.74	1.01	0.31	0.002	1.48	0.64	0.26	0.004
9t, 12t 18:2n-6	28.5	0.04	0.03	0.22	0.027	0.01	0.02	−0.02 NS	0.075
9c, 12t 18:2n-6	1.0	0.24	0.11	−0.20	0.01	0.11	0.04	−0.35	0.083
9t, 12c 18:2n-6	1.0	0.16	0.11	−0.18	0.01	0.08	0.04	−0.16	0.084

^NSnon-significant.

^aAll P<0.001 unless otherwise indicated.