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. 2013 May 1;8(5):e61490. doi: 10.1371/journal.pone.0061490

Table 3. Baseline characteristics of participants according to extreme quintiles of the two major dietary patterns in the SUN project.

Western dietary pattern Mediterranean dietary pattern
Q1 Q5 p value Q1 Q5 p value
(n = 2225) (n = 2225) (n = 2225) (n = 2225)
Sex (% men) 32 60 <0.001* 53 32 <0.001*
Age at baseline (years), mean (SD) 42 (12) 38 (11) <0.001 37 (11) 34 (10) <0.001
BMI (kg/m2), mean (SD) 24 (3) 23 (3) 0.320 23 (3) 24 (3) 0.812
Smoking
Ex smoker (%) 39 23 <0.001* 27 34 <0.001*
Current smoker (%) 19 25 <0.001* 25 20 <0.001*
Leisure time physical activity (Mets-h/week), mean (SD) 22 (23) 21 (23) <0.001 17 (19) 24 (26) <0.001
Total energy intake (Kcal/d), mean (SD) 1886 (569) 2948 (469) <0.001 1982 (616) 2737 (513) <0.001
History of diseases (%)
Diabetes 3 1 <0.001* 1 2 <0.001*
Hypertension 10 5 <0.001* 6 6 <0.001*
Coronary Heart Disease 6 4 <0.001* 3 9 <0.001*
Dyslipidaemia 27 12 <0.001* 16 22 <0.001*

Continuous variables are expressed as the mean and (standard deviation). Categorical variables are expressed as percentages.

*

p value from x2 test.

p value from Student t test.