TABLE 4.

Cross-sectional multiple regression analyses for log S_I and log DI with pentadecanoic acid (15:0) and trans-palmitoleic acid (trans 16:1n−7) in 659 adults in the Insulin Resistance Atherosclerosis Study¹

		Log SI		Log DI
Independent variable	n	β ± SEM	P value	β ± SEM	P value
15:0
Model 12	659	0.689 ± 0.370	0.06	1.763 ± 0.895	0.049
Model 23	645	0.909 ± 0.382	0.018	2.205 ± 0.927	0.018
Model 34	645	0.844 ± 0.381	0.027	2.212 ± 0.931	0.018
Model 45	644	0.504 ± 0.334	0.13	1.628 ± 0.881	0.07
trans 16:1n−7
Model 12	659	−0.556 ± 0.214	0.010	−0.264 ± 0.520	0.61
Model 23	645	−0.439 ± 0.225	0.05	0.078 ± 0.546	0.89
Model 34	645	−0.415 ± 0.223	0.06	0.096 ± 0.548	0.86
Model 45	644	−0.375 ± 0.195	0.05	0.137 ± 0.516	0.79

¹DI, disposition index; S_I, insulin sensitivity index.

²Model 1 was adjusted for age, sex, ethnicity, and center.

³Model 2: additionally adjusted for physical activity, smoking status, alcohol intake, and education.

⁴Model 3: additionally adjusted for total energy, fruit and vegetable, red meat, soft drink, and fiber intakes.

⁵Model 4: additionally adjusted for BMI.