TABLE 2.

Adjusted prevalence odds ratios for colorectal adenoma prevalence by quartiles of trans-fatty acid intake, Diet and Health Study IV, November 2001–December 2002

Quartiles of trans-fatty acid consumption	Median energy-adjusted trans-fatty acid consumption, g/day (interquartile range)	Minimally adjusted model (N = 614)*				Fully adjusted model (N = 546)†
		No. of controls (n = 445)	No. of cases (n = 169)	Prevalence odds ratio	95% confidence interval	No. of controls (n = 401)	No. of cases (n = 145)	Prevalence odds ratio	95% confidence interval
1	3.63 (3.09–3.91)	111	40	1.00		99	35	1.00
2	4.58 (4.39–4.80)	111	36	1.01	0.58, 1,75	101	31	0.98	0.53, 1.79
3	5.34 (5.14–5.58)	111	32	0.95	0.54, 1.67	98	29	1.07	0.57, 2.00
4	6.54 (6.13–7.08)	112	61	1.74	1.06, 2.86	103	50	1.86	1.04, 3.33

^*Adjusted for age, sex, race, and caloric intake.

^†Adjusted for caloric intake, alcohol consumption, physical activity, race, age, sex, and body mass index.