Changes in Dietary Behaviours During the COVID-19 Outbreak Confinement in the Adult Population (COVIDiet_Int)

Part of the questionnaire based on the validated PREDIMED MEditerranean Diet Adherence Screener (MEDAS-14). Briefly, one point is scored when the following choices are selected: olive oil for cooking, daily consumption of four or more tablespoons of olive oil, white meat vs. red meat, two or more servings of vegetables, three or more pieces of fruit, less than one serving of red meat, hamburgers, sausages or deli meats, less than one serving of carbonated or sugary drinks, weekly intake of seven or more glasses of wine, three or more servings of legumes, three or more servings of fish/seafood, three or more servings of nuts, less than two servings of non-homemade pastries, white meat such as turkey or chicken preference instead red meat and two or more dishes seasoned with tomato, garlic, onion or leeks and sautéed with olive oil (sofrito).

The MEDAS-14 score ranges from 0 to 14, whereby higher a scoring reflects greater adherence to the Mediterranean diet.

Part of the questionnaire based on changes in frequency of cooking, snacking, alcohol, fast-food intake (higher, lower or similar) and fried foods intake (<1 time a week, 1-3 times a week, 4-6 times a week, 7 or more than 7 times a week, never), type of oil employed for frying (olive oil, sunflower oil or other), number of main daily meals out of home before the confinement (0,1, 2 or 3), difficult finding any type of food (yes/no) or perception of being eating more during the confinement (yes/no).

In this case, better outcomes are expected if participants increase or maintain the frequency of cooking, use olive oil for frying and decrease or maintain the frequency of snacking, alcohol, fast-food or fried foods intake. Additionally, a good outcome will be considered if participants do not eat more during the confinement and if they do not have problems in finding any type of food.

The questionnaire includes a question regarding the level of physical activity during the COVID-19 confinement in which the following options are provided: it has increased, it has decreased, it remains as usual, I do not practice physical activity.

The best outcome will be considered if the participants maintain or increase their physical activity level during the COVID-19 confinement.

The questionnaire includes a question about the perception or weight gain during the confinement (increased/decreased/Unknown).

The best outcome will be considered if the participants do not increase weight during the COVID-19 confinement.