Table 4.

Odds ratios for stomach cancer by quartiles of dietary recommendation adherence scores among non-proxy interview

Quartiles of dietary recommendation adherence scores
	I	II	III	IV	p-trend	per 10-point increase
mCHEI-2016 score
Total population
Case/Control	379/1514	337/1514	328/1514	283/1514
Crude	1.00	0.89 (0.76, 1.05)	0.87 (0.73, 1.02)	0.75 (0.63, 0.89)	0.001	0.83 (0.77, 0.90)
Model 1	1.00	1.00 (0.84, 1.18)	1.04 (0.88, 1.24)	0.98 (0.82, 1.18)	0.98	0.96 (0.88, 1.05)
Model 2	1.00	1.05 (0.85, 1.29)	1.03 (0.83, 1.28)	1.18 (0.94, 1.48)	0.22	1.05 (0.94, 1.17)
HEI-2015 score
Total population
Case/Control	360/1514	282/1514	397/1514	288/1514
Crude	1.00	0.80 (0.68, 0.95)	1.10 (0.94, 1.29)	0.78 (0.66, 0.93)	0.26	0.94 (0.86, 1.02)
Model 1	1.00	0.77 (0.65, 0.92)	1.09 (0.92, 1.28)	0.85 (0.71, 1.01)	0.65	0.96 (0.88, 1.05)
Model 2	1.00	0.72 (0.58, 0.90)	1.09 (0.89, 1.34)	0.87 (0.69, 1.08)	0.98	0.98 (0.87, 1.10)

Note: mCHEI-2016, modified Chinese Healthy Eating Index; HEI, Healthy Eating Index.

Model 1: Adjusted for age, gender (only for total population), county, total energy intake.

Model 2: Adjusted for model 1 in addition to tobacco smoking (yes vs. no), pack year of smoking, H. pylori infection status, family history of stomach cancer, body mass index (continuous), education level (illiterate, primary, middle, high school or above), and income ten years ago (continuous).