Research Article

Effect of a Mediterranean Diet Intervention on Dietary Glycemic Load and Dietary Glycemic Index: The PREDIMED Study

Table 1

Baseline characteristics of participants according to the intervention group in the PREDIMED studya.

Control dietMediterranean diet with EVOOMediterranean diet with nuts

Sex (%)
 Female64.162.460.20.229
Age (years)67.2 (6.1)66.5 (6.0)66.5 (5.9)0.020
BMI (kg/m2)30.1 (3.7)30.0 (3.6)29.7 (3.6)0.090
Physical activity (METS/d)209.5 (218.8)233.4 (216.4)243.7 (231.6)0.004
Smoking (%)
 Never61.662.563.50.930
 Past23.222.521.6
 Current15.215.014.9
Score of adherence to MeDiet8.5 (1.9)8.9 (1.9)8.9 (1.9)<0.001
Energy intake (kcal/d)2201 (527)2317 (532)2312 (514)<0.001
Carbohydrates (g/d)b247.4 (40.1)245.5 (41.1)241.0 (39.5)0.002
Protein intake (g/d)b90.3 (12.7)91.5 (13.9)91.3 (13.4)0.160
Total fat intake (g/d)b96.6 (16.7)97.1 (17.1)98.1 (15.9)0.160
 Monounsaturated fat48.0 (11.3)48.7 (10.9)48.8 (10.3)0.220
 Polyunsaturated fat15.5 (4.8)15.2 (4.8)16.0 (5.2)0.002
 Saturated fat24.5 (5.8)24.4 (5.9)24.7 (5.5)0.530
Alcohol intake (g/d)b8.0 (13.5)9.0 (14.5)10.3 (16.0)0.004
Fiber intake (g/d)b25.4 (7.8)25.8 (8.2)25.7 (7.5)0.620
Dietary GLb119.6 (23.8)118.9 (25.1)115.8 (23.3)0.001
Dietary GIb 57.7 (4.8)57.6 (4.8)57.3 (4.5)0.160

Continuous variables are showed as means (SD) and categorical variables are expressed as percentages.
Energy adjusted by residuals method.