• measure Zygosity (DNA)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YS_3 YS_5 YS_7 YS_10 YS_12 YS_DHBQ14 YS_DHBQ16 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 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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    Zygosity typing based on micro-satellite markers, single nucleotide polymorphisms (SNP), or variable number (short) tandem repeats (VNTRs).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Skinfold thickness, waist and hip circumference

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Anthropometrics/Body measures
    Available measurements:
    Generation R  6 weeks 6 months 1 year 2 years 3 years 4 years
     
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    Skinfold thickness, waist and hip circumference were assessed as an indication of body fat. Skinfold thickness can noninvasively and reliably be measured at various sites of the body using a skinfold caliper. Based on measurements at multiple sites of the body, the total body fat and contribution of fat to the body mass can be estimated.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Cardiac and renal structure

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Echo
    Available measurements:
    Generation R  6 weeks 6 months 2 years 9-10 years
     
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    Ultrasound measurements were performed to obtain measures of cardiac and renal structure.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Blood sample

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Generation R  Early pregnancy Mid pregnancy Birth 6 months 1 year 1.5 years 2 years 3 years 5-6 years 8 years 9-10 years 13-14 years 17-18 years
     
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    A blood sample consists of taking an amount of a person's blood from their body.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Height and weight

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Anthropometrics/Body measures
    Available measurements:
    Generation R  Early pregnancy Mid pregnancy Late pregnancy 6 weeks 2 months 3 months 4 months 6 months 1 year 1.5 years 2 years 2.5 years 3 years 4 years 5-6 years 9-10 years 13-14 years 17-18 years
     
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    Height and weight were measured without shoes and heavy clothing.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Blood pressure

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Generation R  Early pregnancy Mid pregnancy Late pregnancy 6 weeks 6 months 1 year 2 years 3 years 4 years 5-6 years 9-10 years 13-14 years 17-18 years
     
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    Blood pressure is the force of blood pushing against the walls of arteries as the heart pumps blood around the body. Systolic pressure is the pressure when the heart contracts and pushes blood out and diastolic pressure is the pressure when the heart relaxes and fills with blood. In adults, the systolic pressure normally ranges between 80 and 120 and the...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Nasal and nasalpharyngeal swab

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Generation R  6 weeks 6 months 1 year 2 years 3 years 5-6 years 9-10 years
     
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    Nasal and nasalpharyngeal samples were taken by the use of swabs that were rubbed through the nostrils and the upper part of the throat located behind the nasal cavity. Colonization with Staphylococcus aureus, Haemophilus influenzae, Streptococcus pneumoniae, and Moraxella catarrhalis was determined afterwards.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Abdominal fat mass

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Echo
    Available measurements:
    Generation R  2 years 5-6 years 13-14 years
     
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    Measures of abdominal fat mass were estimated by ultrasound.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Infant vagal modulation (electrocardiography)

    Study:Generation R
    Mode of collection: MeasurementsAndTests    ECG
    Available measurements:
    Generation R  1 year
     
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    Variations in heart rate influenced by the vagus nerve were assessed via electrocardiography (ECG).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Saliva sample - Cortisol

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Generation R  1 year
     
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    Saliva was collected using a cotton swab or a collection device, such as a tube or container (passive drool).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Infant heart rate (electrocardiography)

    Study:Generation R
    Mode of collection: MeasurementsAndTests    ECG
    Available measurements:
    Generation R  1 year
     
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    Heart rate is the number of times a heart beats per minute and normally ranges between 60 and 100 times for adults. Heart rate variability is the time fluctuation between heart beats.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Head circumference

    Study:Generation R
    Mode of collection: MeasurementsAndTests    Anthropometrics/Body measures
    Available measurements:
    Generation R  2 months 3 months 4 months 6 months 1 year 1.5 years 2 years 2.5 years 3 years 4 years
     
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    Head circumference measurements were taken during routine screenings.
    Created October 17, 2024 • Updated October 20, 2024

  • measure E-diary - Tympanic Membrane Temperature

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Early Childhood Cohort  ECC - T1 ECC - T2 ECC - T3 ECC - T5

    Middle Childhood Cohort  MCC - T1 MCC - T2 MCC - T3
     
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    The E-diary Daily Structure and Activities of the Children - Ear Temperature assesses the children's ear temperature through self-reporting in the Upinion smartphone app.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Sleep patterns - Actigraph

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Early Childhood Cohort  ECC - T1 ECC - T2 ECC - T3 ECC - T5 ECC - T6

    Middle Childhood Cohort  MCC - T1 MCC - T2 MCC - T3 MCC - T5
     
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    The Actigraph (Motionlogger) is a device used to determine the sleep patterns of a child during the night.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Hair sample

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Baby and Child  30 weeks 10 months 3 years 6 years

    Child and Adolescent  9 years 12 years
     
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    A hair sample is a collection of hair strands, which are usually cut from a person's head. Hair samples usually contain hair that has grown over the last 12 months.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Length, head circumference, weight and vaccinations

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Anthropometrics/Body measures
    Available measurements:
    Baby and Child  10 months 3 years 6 years
     
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    Information about height, head circumference, weight and vaccinations was obtained from the growth booklet (Groeiboekje), a booklet in which child development is assessed by a public health and consultation bureau.
    Created October 17, 2024 • Updated October 20, 2024

  • measure EEG Face House

    Study:YOUth
    Mode of collection: MeasurementsAndTests    EEG
    Available measurements:
    Baby and Child  5 months 10 months 3 years 6 years
     
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    In the Face-House task, infants or children up to the age of 6 passively watch pictures of faces with a neutral expression (12 faces repeated four times) and pictures of typical Dutch houses (also 12 x 4) while their Electrocardiography (EEG) is measured. This task lasts approximately 3-4 minutes.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Length, weight, head circumference

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Anthropometrics/Body measures
    Available measurements:
    Baby and Child  3 years 6 years

    Child and Adolescent  9 years 12 years
     
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    The body measures height, head circumference, and weight were measured by the experimenter in centimeters and kilos respectively. Participants were asked to take off any shoes and large vests and sweaters that could affect these measures.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Buccal swab

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Baby and Child  20 weeks 5 months 10 months 3 years 6 years

    Child and Adolescent  9 years 12 years
     
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    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 EEG Coherence

    Study:YOUth
    Mode of collection: MeasurementsAndTests    EEG
    Available measurements:
    Baby and Child  5 months 10 months 3 years 6 years
     
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    In the EEG Cohorence task, young children passively watch 60-second video clips depicting singing women (created by Sabine Hunnius and colleagues) or moving toys (used earlier by Jones et al., 2015) while Electrocardiography (EEG) is measured. The task lasts approximately 6 minutes, where both sets of videos last 60 seconds.
    Created October 17, 2024 • Updated October 20, 2024
You can also access this registry using the API (see API Docs).