Table 4

Eta coefficient to the correlation between the PREDIMED (PREvención con DIeta MEDiterránea) questions and the final score by academic field of study

 Health Social Sciences and Humanities Arts Natural Sciences Exact Sciences and Engineering Do you use olive oil as main culinary fat? (Yes) (n=1106) 0.120 0.094 0.033 0.115 0.118 How much olive oil do you consume in a given day? (≥4 tbsp) (n=1099) 0.141 0.008 0.053 0.273 0.304 How many vegetable servings do you consume per day? (≥2) (n=1103) 0.307 0.269 0.313 0.243 0.305 How many fruit units do you consume per day? (≥3 pieces) (n=1104) 0.384 0.419 0.006 0.289 0.523 How many servings of red meat, hamburger or meat products do you consume per day? A full serving is 100–150 g (<1 portion) (n=1092) 0.455 0.211 0.201 0.244 0.349 How many servings (12 g) of butter, margarine or cream do you consume per day? (<1 portion) (n=1088) 0.276 0.246 0.263 0.145 0.214 How much sweetened or carbonated beverages do you drink per day? (<1 per day) (n=1051) 0.160 0.136 0.120 0.148 0.159 Do you drink wine? How much do you drink per week? (≥7 cups) (n=1002) – – 0.053 0.031 0.066 How many servings (150 g) of legumes do you consume per week? (≥3) (n=1093) 0.204 0.175 0.233 0.264 0.227 How many servings of fish/seafood do you consume per week? (100–150 g of fish, 200 g of seafood) (≥3) (n=1095) 0.246 0.282 0.409 0.209 0.190 How many times per week do you consume commercial sweets or pastries, such as cakes, cookies, biscuits or custard? (<3 times) (n=1093) 0.258 0.157 0.240 0.154 0.144 How many servings of nuts (including peanuts) do you consume per week? (1 serving: 30 g) (≥3) (n=1079) 0.442 0.355 0.287 0.006 0.340 Do you preferentially consume chicken, turkey or rabbit meat instead of veal, pork, hamburger or sausage? (Yes) (n=1104) 0.113 0.147 0.193 0.203 0.148 How many times per week do you consume vegetables, pasta, rice or other dishes seasoned with sofrito (sauce made with tomato and onion, leek or garlic and simmered with olive oil)? (≥2) (n=1102) 0.004 0.016 0.112 0.041 0.082
• Bold denotes statistically significant differences (p<0.05).