0 = man
1 = woman

0 = Illiterate
1 = Functional illiterate
2 = Primary school
3 = Bachillerato
4 = Higher education
5 = Other studies

0 = No
1 = Yes
2 = ex-smoker

0 = No
1 = si
2 = former drinker

0 = Under weight -18,5
1 = Normopeso 18,5-24,9
2 = Overweigth 25-29,9
3 = Obesity +30

0 = no
1 = Yes

0 = No
1 = Yes

0 = no
1 = yes

0 = Low
1 = Moderado
2 = High

0 = Normal
1 = Risk malnutrition
2 = Malnourished

0 = severe decrease in food intake
1 = moderate decrease in food intake
2 = no decrease in food intake

0 = weight loss greater than 3kg
1 = does not know
2 = weight loss between 1 and 3kg
3 = no weight loss

0 = bed or chair bound
1 = = able to get out of bed / chair but does not go out
2 = goes out

0 = severe dementia or depression
1 = mild dementia
2 = no psychological problems

0 = BMI less than 19
1 = BMI 19 to less than 21
2 = BMI 21 to less than 23
3 = BMI 23 or greater

0 = 1 meal
1 = 2 meals
2 = 3 meals

0 = 0.0
1 = 0.5
2 = 1

0 = unable to eat without assistance
1 = self-fed with some difficulty
2 = self-fed without any problem

0 = views self as being malnourished
1 = is uncertain of nutritional state
2 = views self as having no nutritional problem

0 = 0.0
1 = 0.5
2 = 1.0
3 = 2.0

0 = 0.0
1 = 0.5
2 = 1.0

0 = 0
1 = 1

0 = low
1 = moderate
2 = high

1 = yes
2 = No
3 = sometimes eats alone

1 = yes
2 = No
3 = sometimes

1 = yes
2 = No
3 = help

1 = Yes
2 = No

0 = less than 600 euros
1 = 600 to less than 1000 euros
2 = 1000 to less than 1600 euros
3 = 1600 euros or greater
4 = No income

0 = Menos 600 euros
1 = Entre 600-1000 euros
2 = 1000 to less than 1600 euros
3 = Más 1600 euros
4 = No income

0 = Not Selected
1 = Selected