Table 3.

Proportion of participants with an intake of macro and micronutrients below 2/3 dietary reference intakes according to Mediterranean diet adherence groups.

	DRI	Total population	MedDiet Adherence
			Low (<6 points)	Medium (6–11 points)	High (≥12 points)	p-valuea	Adjusted value of p (low vs high)b	p for trendc
N (%)		1,356 (100)	262 (19.3)	972 (71.7)	122 (9.0)
Vitamin A	700 μg	24 (1.8)	16 (6.1)	8 (0.8)	0 (0)	<0.0001	0.022	0.023
Vitamin B1	1.2 mg	6 (0.4)	3 (1.2)	3 (0.3)	0 (0)	0.182	0.589	0.543
Vitamin B9	500 μg	167 (12.3)	78 (29.8)	89 (9.2)	0 (0)	<0.0001	<0.0001	<0.0001
Vitamin B12	2.2 μg	11 (0.8)	2 (0.8)	9 (0.9)	0 (0)	0.883	0.968	0.667
Vitamin C	80 mg	8 (0.6)	5 (1.9)	3 (0.3)	0 (0)	0.016	0.033	0.024
Vitamin D	10 μg	1,121 (82.7)	243 (92.8)	803 (82.6)	75 (61.5)	<0.0001	<0.0001	<0.0001
Vitamin E	15 μg	33 (2.4)	18 (6.9)	15 (1.5)	0 (0)	<0.0001	0.109	0.047
Calcium	1,000 mg	176 (13.0)	70 (26.7)	103 (10.6)	3 (2.5)	<0.0001	<0.0001	0.039
Magnesium	360 mg	29 (2.1)	20 (7.6)	9 (0.9)	0 (0)	<0.0001	0.001	0.003
Iron	25 mg	713 (52.6)	194 (74.1)	489 (50.3)	30 (24.5)	<0.0001	<0.0001	<0.0001
Zinc	10 mg	21 (1.5)	10 (3.8)	11 (1.1)	0 (0)	0.005	0.306	0.236
Sodium	1,500 mg	0 (0)	0 (0)	0 (0)	0 (0)	1.000	1.000	1.000
Potassium	3,100 mg	10 (0.7)	8 (3.1)	2 (0.2)	0 (0)	<0.0001	0.082	0.201
Phosphorous	800 mg	0 (0)	0 (0)	0 (0)	0 (0)	1.000	1.000	1.000

Values are expressed as number of participants (%). DRI, dietary reference intakes; MedDiet, Mediterranean diet.

^ap-value refers to the comparison between different MedDiet adherence categories. p-value refers to the comparison between groups (MedDiet categories).

^bAdjusted p-value were obtained by multivariate linear regression models adjusted for total energy intake, age, ethnicity, smoking status, educational level, and pre-conceptional BMI.

^cTo assess the linear trend (p for trend) across MedDiet adherence categories, the mean value was assigned to each tertile.