Table 2.

Association between dietary oxygen radical absorbance capacity (ORAC) intake and gastric cancer (GC) risk.

	Dietary ORAC			P for trend
	T1	T2	T3
H-ORAC (μmol TE/day)	<2,655.07	2,655.07–4,759.10	≥4,759.11
No. Controls/Cases	277/215	276/117	277/83
Model I OR (95% CI)	1.0 (ref)	0.55 (0.41–0.72)	0.39 (0.29–0.52)	<0.001
Model II OR (95% CI)	1.0 (ref)	0.61 (0.44–0.85)	0.54 (0.38–0.76)	<0.001
Model III OR (95% CI)	1.0 (ref)	0.65 (0.46–0.92)	0.57 (0.39–0.82)	0.004
L-ORAC (μmol TE/day)	<139.97	139.97–215.48	≥215.49
No. controls/cases	276/190	277/133	277/92
Model I OR (95% CI)	1.0 (ref)	0.70 (0.53–0.92)	0.48 (0.36–0.65)	<0.001
Model II OR (95% CI)	1.0 (ref)	0.74 (0.54–1.02)	0.53 (0.44–0.88)	0.007
Model III OR (95% CI)	1.0 (ref)	0.72 (0.51–1.01)	0.66 (0.45–0.95)	0.021
TPs (mg GAE/day)	<230.09	230.09–445.51	≥445.52
No. controls/cases	277/220	276/117	277/78
Model I OR (95% CI)	1.0 (ref)	0.53 (0.40–0.71)	0.36 (0.26–0.48)	<0.001
Model II OR (95% CI)	1.0 (ref)	0.61 (0.44–0.84)	0.52 (0.37–0.75)	0.001
Model III OR (95% CI)	1.0 (ref)	0.64 (0.45–0.90)	0.57 (0.39–0.83)	0.005

ORAC, oxygen radical absorbance capacity; H-ORAC, hydrophilic oxygen radical absorbance capacity; L-ORAC, lipophilic oxygen radical absorbance capacity; TPs, total phenolics; TE, trolox equivalents; GAE, gallic acid equivalents; T, tertile; OR, odds ratio; 95% CI, 95% confidence interval. Model I: crude OR; model II: age (continuous), BMI (<25 kg/m² or ≥25 kg/m²), education level (less than college or college and higher), income (<200, 200- <400 or ≥400), physical activity (yes or no), smoking status (current, ex- or non-smoker), first-degree family history of GC (yes or no), and total energy intake; model III: additionally, adjusted for H. pylori infection (positive or negative).

Bold values mean the significant values (p<0.05) for the visual effect.