TABLE 2.

HRs (95% CIs) for the association of plasma phospholipid α-linolenic acid with incident congestive heart failure and nonvalvular congestive heart failure in 2957 participants in the Cardiovascular Health Study¹

	Quartile of plasma phospholipid α-linolenic acid
	1	2	3	4	P-trend
Total congestive heart failure
Person-years	7838	7570	7469	7846
No. of incident cases	191	169	161	165
Model 1	Reference	0.95 (0.77, 1.17)	0.91 (0.74, 1.13)	0.88 (0.72, 1.09)	0.23
Model 2	Reference	0.97 (0.78, 1.20)	0.98 (0.79, 1.22)	0.97 (0.79, 1.21)	0.85
Nonvalvular congestive heart failure
Person-years	7838	7570	7469	7846
No. of incident cases	123	109	92	107
Model 1	Reference	0.93 (0.72, 1.21)	0.80 (0.61, 1.05)	0.88 (0.68, 1.15)	0.22
Model 2	Reference	0.98 (0.75, 1.28)	0.88 (0.67, 1.16)	1.03 (0.79, 1.34)	0.95

¹HRs and 95% CIs were calculated by using multivariate Cox proportional hazard regression. Model 1 was adjusted for age (y) and sex. Model 2 was adjusted as for model 1 with additional adjustment for enrollment site (4 sites), race (white, nonwhite), education (<high school, high school, college), smoking (never, former, current), leisure-time physical activity (kcal/wk), BMI (kg/m²), waist circumference (cm), and alcohol consumption (g/d).