TABLE 2.

Associations of adherence to DASH and Mediterranean diet with COPD.

Adjusted model
Characteristic	Unadjusted model			Model 1a			Model 2b			Model 3c
	OR	CI (95%)	P-value	OR	CI (95%)	P-value	OR	CI (95%)	P-value	OR	CI (95%)	P-value
MedD scores
T1	Ref			Ref			Ref			Ref
T2	0.94	0.81−1.08	0.400	0.89	0.77−1.03	0.124	0.96	0.83−1.11	0.603	1.06	0.91−1.23	0.452
T3	0.79	0.69−0.91	0.001	0.80	0.69−0.92	0.003	0.95	0.81−1.10	0.457	1.03	0.88−1.20	0.697
DASH scores
T1	Ref			Ref			Ref			Ref
T2	0.80	0.71−0.90	<0.001	0.81	0.72−0.91	0.001	0.85	0.76−0.96	0.010	0.83	0.73−0.95	0.005
T3	0.67	0.57−0.77	<0.001	0.74	0.63−0.86	<0.001	0.82	0.70−0.95	0.011	0.83	0.71−0.97	0.021

CI, confidence interval; OR, odds ratio; MedD, Mediterranean diet; DASH, dietary approaches to stop hypertension.

^aAdjusted for gender, age, race/ethnicity, cohabitation, education, income-poverty ratio, body mass index, and total energy.

^bAdjusted for gender, age, race/ethnicity, cohabitation, education, income-poverty ratio, body mass index, total energy, smoking, and pack-years.

^cAdjusted for gender, age, race/ethnicity, cohabitation, education, income-poverty ratio, body mass index, total energy, smoking, pack-years, secondhand smoke, and asthma.