Table 3.

Variant regression model of the PHQ-9 score and the variables of sex, age, educational level, BMI and MEDAS items. CCI in the individuals with chronic diseases.

PHQ-9 Score Global Sample	Coefficient	p-Value	95% Confidence Interval
			Lower	Upper
Constant	4.521	<0.001	2.801	6.242
Sex (women vs. men)	1.859	<0.001	1.502	2.216
−1 Red meat per day (Yes vs. No)	−0.735	<0.001	−1.109	−0.361
Age (in years)	−0.045	<0.001	−0.067	−0.023
−1 Sugary drinks per day (Yes vs. No)	−0.710	0.001	−1.112	−0.308
BMI	0.036	0.023	0.005	0.067
+3 Nuts per week (Yes vs. No)	−0.423	0.040	−0.828	−0.018
+2 Vegetables cooked in olive oil per week	−0.360	0.047	−0.715	−0.005
R2	0.051
R2 adjusted	0.049
PHQ-9 score With chronic disease	Coefficient	p-value	95% Confidence interval
			Lower	Upper
Constant	7.749	<0.001	5.683	9.815
Sex (women vs. men)	2.010	<0.001	1.527	2.494
Age (in years)	−0.108	<0.001	−0.147	−0.069
−1 Sugary drinks per day (Yes vs. No)	−0.829	0.002	−1.364	−0.293
CCI	0.291	0.008	0.078	0.505
+3 Fruit per day (Yes vs. No)	0.665	0.017	0.118	1.213
+3 Nuts per week (Yes vs. No)	−0.586	0.040	−1.147	−0.026
R2	0.062
R2 adjusted	0.059
PHQ-9 score Without chronic disease	Coefficient	p-value	95% Confidence interval
			Lower	Upper
Constant	5.425	<0.001	3.188	7.662
Sex (women vs. men)	1.352	<0.001	0.779	1.925
−1 Red meat per day (Yes vs. No)	−1.073	<0.001	−1.656	−0.489
Age (in years)	−0.051	0.007	−0.089	−0.014
R2	0.039
R2 adjusted	0.036

Note: CCI, Charlson Comorbidity Index.