• measure Demographic family characteristics

    Study:L-CID
    Mode of collection:SelfAdministeredQuestionnaire
    Available measurements:
    Early Childhood Cohort  T1 T2 T3 T4 T5 T6 T6 - Covid

    Middle Childhood Cohort  T1 T2 T3 T4 T5 T5 - Covid T6
    0
    30 years
    The Demographic Family Characteristics questionnaire consists of 14 items that assess family characteristics, such as age, gender, socio-economic status, etc.
    Created March 28, 2023 • Updated March 28, 2023

  • measure Ethnicity

    Study:L-CID
    Mode of collection:SelfAdministeredQuestionnaire
    Available measurements:
    Early Childhood Cohort  T3

    Middle Childhood Cohort  T1
    0
    30 years
    The Ethnicity questionnaire consists of 12 items with subitems that assess the ethnicity of participants.
    Created March 28, 2023 • Updated March 28, 2023

  • measure Zygosity (questionnaire)

    Study:L-CID
    Mode of collection:SelfAdministeredQuestionnaire
    Available measurements:
    Early Childhood Cohort  T1 T2

    Middle Childhood Cohort  T1
    0
    30 years
    The Zygosity questionnaire asks parents of twin pairs about the resemblance between the twins to determine whether the twin pair is mono- or dizygotic. This questionnaire consists of 10 questions: 6 items about physical similarities between the twin and 4 items about confusion in identifying the twins by parents and others.
    Created March 28, 2023 • Updated March 28, 2023
You can also access this registry using the API (see API Docs).