The association between diet quality and chronic obstructive pulmonary disease: a case-control study

BMC Public Health

Table 5 Association Between Healthy Eating Index (HEI-2010) Score and Risk of chronic obstructive pulmonary disease (COPD)

Healthy eating index score range	1 (n= 84)	2 (n= 84)		3 (n= 87)		4 (n= 81)		P trend
Healthy eating index score range	OR	OR	95% CI	OR	95% CI	OR	95% CI
Crude	1.00	0.72	0.38-1.38	0.44	0.22-0.87	0.34	0.16-0.72	0.002
Model I	1.00	0.66	0.21-2.1	0.34	0.1-1.5	0.18	0.03-0.96	0.04
Model II	1.00	0.51	0.11-2.24	0.29	0.04-1.98	0.08	0.01-0.93	0.05
Model III	1.00	0.5	0.11-2.23	0.29	0.04-1.95	0.08	0.01-0.92	0.046

Model I: adjusted for energy, age, gender, residence, marital status, employment, owning a car/home, education, family history of COPD
Model II: Further adjusted for smoking and physical activity
Model III: Further adjusted for BMI

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