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Table 1 Characteristics of participants in each randomized intervention group

From: Mediterranean dietary pattern and depression: the PREDIMED randomized trial

 

MD-EVOO

MD-nuts

Control diet

 

(n=1446)

(n=1293)

(n=1184)

Age, years

67.1, 6.2

66.7, 6.0

67.4 (6.4)

Male sex, %

47.1

53.5

46.2

Smoking status, %

   

  Never-smoker

57.7

56.5

58.1

  Current smoker

14.5

15.2

14.9

Marital status, %

   

  Married

80.2

79.9

77.0

Educational level, %

   

  Primary or lower

76.5

75.2

79.1

  University

8.6

8.4

6.3

Disease prevalence, %

   

  Cancer

2.1

3.2

2.3

  Diabetes

52.4

48.1

50.7

  Hypertension

80.2

81.1

82.3

  Hypercholesterolemia

68.9

69.5

67.7

  Parkinson disease

0.3

0.3

0.3

  Chronic bronchitis

4.8

4.7

5.4

  Fractures

16.1

17.8

18.7

Body mass index, kg/m2

29.8, 3.7

29.6, 3.7

30.1 (4.0)

Total energy intake, kcal/day

2317.9, 619.1

2384.1, 611.0

2256.4 (605.8)

Alcohol intake, g/day

10.0, 15.6

11.2, 17.1

9.0 (14.9)

Physical activity during leisure time, METs-min/day

247.4, 243.6

270.9, 258.7

226.9 (261.1)

  1. Abbreviations: MET metabolic equivalent, EVOO extra virgin olive oil.