Table 2.

Risk of incident depression in each randomized group

	Nutritional intervention
	Control diet	MD-EVOO	MD-nuts
Cases	77	88	59
Person-years	6,096	7,715	6,803
Model 1a
HR (95% CI)	1 (ref)	0.85 (0.62 to 1.15)	0.73 (0.52-1.03)
HR (95% CI)b	1 (ref)	0.80 (0.60 to 1.05)
Model 2c
HR (95% CI)	1 (ref)	0.91 (0.67 to 1.24)	0.78 (0.55-1.10)
HR (95% CI)b	1 (ref)	0.85 (0.64 to 1.13)c

Abbreviations: HR hazard ratio, MD Mediterranean diet, ref reference group, EVOO extra virgin olive oil.

^aModel 1: adjusted for age, sex, and recruiting center.

^bCombined MD.

^cModel 2: model 1 additionally adjusted for body mass index, smoking, physical activity during leisure time, educational level, marital status, alcohol and total energy intake, and presence of any of several diseases at baseline (cancer, diabetes mellitus type 2, hypertension, hypercholesterolemia, fractures, Parkinson disease and chronic bronchitis).