• measure Pregnancy Problems

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YC_DSC YC_ADHMRI YS_TRIP age 1-2
     
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    5
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    25
    30
    years
    Problems during the pregnancy were assessed, such as eclampsia, iron deficiency, or twin-to-twin transfusion syndrome (TTTS).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Buccal swab

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YE_ATTEF1 YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG18
     
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    30
    years
    Buccal swabs are collections of buccal cell scrapings obtained by rubbing buds along the inside of the mouth.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Handedness and hand preference

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_2 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS1 YC_BS2 YE_FITNSS YE_ATTEF1 YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG12 YE_COG18 YS_TRIP age 2 YS_TRIP age 1-2
     
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    30
    years
    Self-reported handedness or hand preference of self or family members was assessed.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Pregnancy Duration and Birth

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YC_DSC YC_ADHMRI YE_COG18 YS_TRIP age 1 YS_TRIP age 1-2
     
    0
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    30
    years
    Pregnancy Duration and Birth assesses the duration of the pregnancy from conception to birth, and the labor process, e.g., were the children born on time, prematurely or late; time between birth of the children; manner of birth (e.g., vaginal, cesarean), position of the children in the uterus before birth; and the course of the delivery.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Family Situation

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_2 YS_3 YS_5 YS_7 YS_10 YS_12 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS2 YE_COG18 YS_TRIP age 1-2 YS_TRIP age 3 YS_TRIP age 4 YS_TRIP age 5 YS_TRIP age 7 YS_TRIP age 10 YS_TRIP age 12
     
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    25
    30
    years
    Family situation assesses information about the family and living situation, such as divorce or death of (a) parent(s), co-habition and co-parenting.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Substance Use

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YS_2 YS_3 YS_5 YS_7 YS_10 YS_12 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS2 YC_BS3 YE_FITNSS YE_COG18 YS_TRIP age 1 YS_TRIP age 2 YS_TRIP age 1-2
     
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    30
    years
    Substance use was assessed, including tabacco, alcohol, and (recreational) drugs.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Supplement use

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YC_ACTION BB2 YC_ACTION - BB3 YE_COG18 YS_TRIP age 1 YS_TRIP age 1-2
     
    0
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    30
    years
    Nutritional supplement use was assessed in mothers during pregnancy, and vitamin supplementation use was assessed for children, including formation regarding type, frequency, and duration of vitamin supplementation.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Heart beat perception

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF3
     
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    30
    years
    In Heart beat perception, participants were asked to judge their own heart rate by introspective visceral awareness, i.e. without palpitating the arterial pulse signal at wrist or neck. They judged their mean heart rate per minute over three short periods (25, 35 and 45 seconds).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Sedentary behavior

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS follow-up
     
    0
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    25
    30
    years
    Sedentary behavior is an online survey that assesses sedentary behavior, by estimating the number of minutes per week spent sitting during various tasks and daily activities.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Contraception Use

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS2 YC_BS3 YE_FITNSS YE_COG18 YS_TRIP age 1 YS_TRIP age 1-2
     
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    30
    years
    Contraception use assesses the use of hormonal preparations, such as the contraceptive pill. Questions typically include whether the respondent has used or uses contraceptives prior to pregnancy or at this moment, and in some cases, for how long they have used it, and which type of contraceptive.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Child care

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YS_2 YS_3 YS_5 YS_7 YS_10 YS_12 YC_BS2 YS_TRIP age 1-2 YS_TRIP age 3 YS_TRIP age 5
     
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    30
    years
    Childcare comprises of questions about pre-school, after-school and out-of school care.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Mental Rotations Test (MRT)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF3
     
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    30
    years
    In the Mental Rotations Test (MRT), participants are asked to compare two-dimensional drawings and three- dimensional geometric figures in order to assess spatial processing.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Medication Use

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YS_2 YS_3 YS_5 YS_7 YS_10 YS_12 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YE_ATTEF2 YC_ADHMRI YE_COG18 YS_TRIP age 1 YS_TRIP age 2 YS_TRIP age 1-2 YS_TRIP age 3 YS_TRIP age 5
     
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    30
    years
    Medication use assesses, among others, dosage, duration, and ATC code of any medications used, if available.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Task-Choice Goal Measure

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF3
     
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    30
    years
    The Task-Choice Goal Measure assesses participants' achievement goals, using the 2 × 2 achievement goal framework that comprises the mastery-approach, mastery-avoidance, performance approach, and performance-avoidance goals. It includes items such as "It is important for me to do better than other students", and " I just want to avoid doing poorly in this...
    Created October 17, 2024 • Updated October 20, 2024

  • measure VU University Ambulatory Monitoring System (VU-AMS)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS YE_ATTEF3 YE_COG18
     
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    30
    years
    The VU University Ambulatory Monitoring System (VU-AMS) enables non-invasive ambulatory measurement of the autonomic nervous system for research purposes and can be used to measure: Heart Rate/Inter beat Interval (IBI), Heart Rate Variability (SDNN, RMSSD, IBI power spectrum: HF, LF), Respiratory Sinus Arrhythmia (RSA), Pre-Ejection Period (PEP), Left...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Temperament Questions

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_2 YS_TRIP age 2 YS_TRIP age 1-2
     
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    30
    years
    Temperament questions assess temperament in the children, including crying without a clear cause, and being upset after a disruption of the daily routine.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Raven's Progressive Matrices Test (RPM)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YE_ATTEF3
     
    0
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    30
    years
    Raven's Progressive Matrices (often referred to simply as Raven's Matrices or RPM) is a non-verbal test used to measure general intelligence and abstract reasoning. It is one of the most common tests administered to both groups and individuals ranging from 5-years-olds to the elderly. It consists of 60 multiple choice questions, listed in order of...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Diet during pregnancy

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YS_TRIP age 1-2
     
    0
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    30
    years
    Diet during pregnancy asks mothers whether they have eaten eggs, dairy products, soy products, fish, and meat during their pregnancy, and whether they followed a vegetarian diet during pregnancy.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Health problems and treatments

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_1 YS_2 YS_3 YS_5 YS_TRF5 YS_7 YS_TRF7 YS_10 YS_TRF10 YS_12 YS_TRF12 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_DSC YE_FITNSS YE_ATTEF2 YC_ADHMRI YE_COG12 YE_COG18 YS_TRIP age 1 YS_TRIP age 2 YS_TRIP age 1-2 YS_TRIP age 3 YS_TRIP age 4 YS_TRIP age 5 YS_TRIP age 7 YS_TRIP age 10 YS_TRIP age 12
     
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    years
    Health problems and treatments contains questions about health problems, diseases and disorders, including handicaps, treatments (also for mental health problems) and hospitalization.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Breastfeeding

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_2 YS_TRIP age 2 YS_TRIP age 1-2
     
    0
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    20
    25
    30
    years
    Breastfeeding was assessed through the question: Did the twin get breastfeeding?
    Created October 17, 2024 • Updated October 20, 2024
You can also access this registry using the API (see API Docs).