computeRMed: computeRMED

In MedDietScore: Scores of Adherence to Mediterranean Diet and Other Tools for Nutriepidemiological Research

Description

Computes the Revised Mediterranean Diet adherence score according to Buckland et al. in 2009, also known as rMED.

Usage

computeRMED(data, FruitAndNuts, Vegetables, Legumes, Cereals, Fish,
            OliveOil, OOmeasure = "gr", Meat, Dairy, Alcohol,
            Kcal, Sex, men="male", women="female",
            frequency = NULL, output = "percent", rm.na = FALSE)

Arguments

data	Your data set with nutritional information about food or nutrient consumption. Each row is expected to be a person, and food or nutrient intake are in columns
FruitAndNuts	Numeric variable with consumption of Fruits and Nuts as grams.
Vegetables	Numeric variable with Vegetables consumption as grams
Legumes	Numeric variable with Legumes consumption as grams
Cereals	Numeric variable with Legumes consumption as grams
Fish	Numeric variable with Fish consumption as grams
OliveOil	Numeric variable with olive oil consumption, measure is set with the 'OOmeasure' argument
OOmeasure	Character string which informs about the unit of the argument 'OliveOil'. Allowed values are 'gr', 'ml' and 'serving', which means respectively grams, mililiters and servings of 1 table spoon (15 ml).
Meat	Numeric variable with Meat consumption as grams
Dairy	Numeric variable with Dairy consumption as grams
Alcohol	Numeric variable with Alcohol consumption as etanol grams from any beberage origin
Kcal	Numeric variable with energy consumption in kilocalories.
Sex	Vector with gender, it can be numeric, factor or character, as long as its values are provided by 'men' and 'women' arguments. If 'Sex' argument is character or factor, and values for male are either 'man', 'male', 'MAN' or 'MALE', and for females are 'woman', 'female', 'WOMAN' or 'FEMALE', then, the arguments 'men' and 'women' can be missing
men	A character string with the value of male gender, default is "male"
women	A character string with the value of female gender, default is "female"
frequency	A character string. Allowed values are 'daily', 'weekly' and 'monthly'. It informs about the frequency which food or nutrient consumption refers to (i.e. wether the rest of arguments are 'grams per day' or 'grams per week' or 'grams per month')
output	A character string to set which output should the formula give, allowed values are 'data.frame', 'score' and 'percent' (default).
rm.na	Logical. If set to FALSE (default), a diet score will be computed only if a person has all score components informed. If set to TRUE, NA values in score components will be drop off and a value of available components will be returned, but percent of score adherence will be computed with basis of the whole score range (see Details)

Details

the rMED questionnaire scores food consumption as grams by 1000Kcal/day, but arguments are expected to be provided as grams eaten by day.

Value

Computed RMed score. Depending on 'output' argument, value can be a data.frame, or a vector:

if output = 'data.frame'	A data frame with a row corresponding to each person in data. Columns are the score of each component, as well as the global score as natural sum ('absolute' column) and as percentage ('percent' column)
if output = 'score'	Instead of the full data.frame, just the integer vector corresponding to the absolute points of adherence to Mediterranean Diet for each person, from 0 (min.) to 18 (max.)
if output = 'percent'	Instead of the full data.frame, just the numeric vector corresponding to the percent of adherence to Mediterranean Diet for each person, from 0 (min. adherence) to 100 percent (max. adhrence)

Author(s)

Miguel Menendez

References

Buckland, Genevieve, Carlos A. Gonzalez, Antonio Agudo, Mireia Vilardell, Antoni Berenguer, Pilar Amiano, Eva Ardanaz, et al. 2009. 'Adherence to the Mediterranean Diet and Risk of Coronary Heart Disease in the Spanish EPIC Cohort Study'. American Journal of Epidemiology, January, kwp282. doi:10.1093/aje/kwp282.

Examples

data(nutriSample)

MedDiet <- computeRMED(data = nutriSample,
                      Kcal = totalKcal,
                      FruitAndNuts = P50grCom + P52grCom,
                      Vegetables = P41grCom + P42grCom,
                      Legumes = P46grCom,
                      Cereals = P55grCom + P56grCom + P57grCom + P59grCom +
                                P60grCom + P61grCom + P62grCom,
                      Fish = P35grCom + P36grCom + P37grCom + P38grCom,
                      OliveOil = Aceitegr,
                      Meat = P29grCom + P30grCom + P31grCom + P32grCom,
                      Dairy= P19grCom + P20grCom + P20grCom + P22grCom + P23grCom +
                             P24grCom + P25grCom + P26grCom + P27grCom,
                      Alcohol = 10 * (P94rac + P96rac + P97rac + P98rac + P99rac),
                      Sex = SEXO, men = "Hombre", women = "Mujer",
                      frequency = "daily", output = "percent", rm.na = FALSE)
summary(MedDiet)

MedDietScore documentation built on April 3, 2017, 4:01 p.m.