Table 2.

Association between pro- and non-healthy diet indices and colorectal cancer

Tertiles of Indices	Case/Control	Model 1			Model 2
		OR	95% CI	P-value	OR	95% CI	P-value
Pro-Healthy Diet Index
Total score	71/141	0.87	0.79–0.96	0.006	0.86	0.76–0.96	0.009
T1 (≤ 8)	29/34	1.00	Ref.	-	1.00	Ref.	-
T2 (9–11)	25/43	0.68	0.33–1.37	0.282	0.45	0.20–1.04	0.062
T3 (≥ 12)	17/65	0.30	0.14–0.63	0.001	0.25	0.10–0.61	0.002
Non-Healthy Diet Index
Total score	71/141	1.07	0.99–1.15	0.069	1.13	1.03–1.25	0.008
T1 (≤ 9)	18/50	1.00	Ref.	-	1.00	Ref.	-
T2 (10–12)	24/49	1.36	0.65–2.81	0.407	1.88	0.82–4.28	0.132
T3 (≥ 13)	29/43	1.87	0.91–3.82	0.086	2.62	1.09–6.27	0.030

OR: odds ratio, CI: confidence interval, Ref: reference, T: tertile

Model 1: crude model

Model 2: adjusted for energy intake, BMI, physical activity, smoking, family history of CRC, vegetable and meat cooking methods, and use of ibuprofen, aspirin, and acetaminophen

-Obtained from logistic regression

-These values are odds ratios (95% CIs)

-Significant values are shown in bold