matrix of the sample
year of sample collection
month of sample collection (1 is the first month of the year)
day of sample collection (1 is the first day of the month)
Season of sampling
Hour of sampling
Minutes of sampling
Year in which the sample was analyzed in the lab
Month in which the sample was analyzed in the lab
Day in which the sample was analyzed in the lab
Method applied for lipid assessment in the sample
provide a description of the time point in case of repeated measurements.
relation id_subject vs id_participant (main subject of the study)
sex of the subject
Age of the mother of the subject in years at delivery
Smoking status of the mother of the subject during pregnancy
If this is a case-control study, indicate whether the subject belongs to the control or the case group
Does the participant belong to the general population?
If participant does not belong to the general population, please fill in the appropiate population group to which he/she belongs
If participant does not belong to the general population, please fill in the appropiate population group to which he/she belongs - other subpopulation group
country of residence of the subject according to ISO 3166-1 alpha-2 at sampling
NUTS Level 1 of residence of the subject: (Nomenclature of Territorial Units for Statistics), by regional level, version 2021 (NUTS 2021) at sampling
NUTS Level 2 of residence of the subject: (Nomenclature of Territorial Units for Statistics), by regional level, version 2021 (NUTS 2021) at sampling
NUTS Level 3 of residence of the subject: (Nomenclature of Territorial Units for Statistics), by regional level, version 2021 (NUTS 2021) at sampling
subdivision of country of residence of the subject according to ISO 3166-2 at sampling
Degree of urbanization of residence at sampling of the subject.
age in years of the subject at sampling
age in months of the subject at sampling
age in weeks of the subject at sampling
age in days of the subject at sampling
education level of the subject  (ISCED scale) at sampling
education level of the subject  (ISCED scale) at sampling
education level of mother of the subject (ISCED scale) at sampling
education level of mother of the subject (ISCED scale) at sampling
education level of father of the subject (ISCED scale) at sampling
education level of father of the subject (ISCED scale) at sampling
Highest education level of the household of the  subject (ISCED scale) at sampling
Highest education level of the household of the  subject (ISCED scale) at sampling
Smoking status of the subject at sampling
height of the subject at sampling
weight of the subject at sampling
body mass index of the subject at sampling