• measure Hair samples - Dehydroepiandrosterone (DHEA)

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Early Childhood Cohort  ECC - T2 ECC - T3 ECC - T4 ECC - T6

    Middle Childhood Cohort  MCC - T2 MCC - T3 MCC - T4
     
    0
    5
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    25
    30
    years
    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 June 5, 2024 • Updated June 20, 2024

  • measure Stop-Signal Task - Arrows

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Early Childhood Cohort  ECC - T5 ECC - T6

    Middle Childhood Cohort  MCC - T1 MCC - T2 MCC - T3 MCC - T4 MCC - T5 MCC - T7
     
    0
    5
    10
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    25
    30
    years
    The Stop-Signal Task - Arrows aims to measure behavioral inhibition by having the child inhibit their reaction in response to a quickly appearing signal. During the task, left- and right-pointing arrows appear on the screen. When the arrow points left, the child has to press the left button, and when the arrow points right, the child has to press the...
    Created June 5, 2024 • Updated June 20, 2024

  • measure Donating Task - Money

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Early Childhood Cohort  ECC - T5 ECC - T6

    Middle Childhood Cohort  MCC - T1 MCC - T2 MCC - T3 MCC - T4 MCC - T5 MCC - T6
     
    0
    5
    10
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    20
    25
    30
    years
    The Donating Task aims to measure costly prosocial behavior by giving a child the option to donate money to charities or to keep it for themselves. Children are shown a short video from a charity organization on a computer, such as Unicef, SOS Kinderdorpen, or Liliane Fonds. The video features the life of a poor, malnourished child in a developing...
    Created June 5, 2024 • Updated June 20, 2024

  • measure Prosocial Cyberball Game (PCG)

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Early Childhood Cohort  ECC - T5

    Middle Childhood Cohort  MCC - T1 MCC - T3 MCC - T5
     
    0
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    10
    15
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    25
    30
    years
    The Prosocial Cyberball Game (PCG) measures prosocial behavior related to empathy when seeing that someone is being socially excluded. In the game, children play a (digital) ball-tossing game with peers. In the first block of the game, all children typically receive the ball an equal amount of time. In the second block of the game, one of the peers is...
    Created June 5, 2024 • Updated June 20, 2024

  • measure Prosocial Cyberball Game (PCG) - Stories

    Study:L-CID
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Middle Childhood Cohort  MCC - T2 MCC - T4 MCC - T6
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Prosocial Cyberball Game (PCG) measures prosocial behavior related to empathy when seeing that someone is being socially excluded. In the game, children play a (digital) ball-tossing game with peers. In the first block of the game, all children typically receive the ball an equal amount of time. In the second block of the game, one of the peers is...
    Created June 5, 2024 • Updated June 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
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Actigraph (Motionlogger) is a device used to determine the sleep patterns of a child during the night.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Urinary osmolality

    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
     
    0
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    25
    30
    years
    Urinary osmolality was measured with a density test (specific gravity) using the Atago refractometer PAL-10S BLT/A+W (Atago, Tokyo, Japan). The refractive index is a ratio of the velocity of light in air to the velocity of light in solution, which is directly proportional to the number of dissolved solids in urine.
    Created June 5, 2024 • Updated June 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 June 5, 2024 • Updated June 20, 2024

  • measure LC-MS amines

    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
     
    0
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    25
    30
    years
    Liquid chromatography mass spectrometry (LC-MS) platform targeting amines.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Neuropeptides

    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
     
    0
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    25
    30
    years
    Neuropeptides, including Substance P, Beta-endorphin, Dynorphin A, neurotensin, and Leu-enkaphalin, were measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 • Updated June 20, 2024

  • measure Genotyping (array)

    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 YC_ADHMRI YE_COG18
     
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    10
    15
    20
    25
    30
    years
    Assessment of single nucleotide polymorphisms (SNPs) as obtained through genotyping arrays.
    Created June 5, 2024 • Updated June 20, 2024

  • measure LC-MS steroid hormones

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB2 YC_ACTION - BB3 YC_BS1
     
    0
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    10
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    25
    30
    years
    Liquid chromatography mass spectrometry (LC-MS) platform targeting steroid hormones.
    Created June 5, 2024 • Updated June 20, 2024

  • measure GC-MS organic acids

    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
     
    0
    5
    10
    15
    20
    25
    30
    years
    Gas chromatography mass spectrometry (GC-MS) platform targeting organic acids.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Liver enzymes

    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
     
    0
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    25
    30
    years
    Liver enzymes, for instance Albumin, Jodide, Aspartaat Aminotransferase (ASAT), and Alanine Transaminase (ALAT), measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 • Updated June 20, 2024

  • measure Peptide hormones

    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_BS1 YC_BS2 YC_BS3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Peptide hormones, for instance Adrenocorticotropic Hormone (ACTH, pituitary hormone), Alpha-Melanocyte-Stimulating Hormone (α-MSH, Melanocortin), Luteinizing Hormone (LH), Cholecytokinin, and Follicle Stimulating Hormone (FSH), measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 • Updated June 20, 2024

  • measure DNA methylation (array)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION - BB3
     
    0
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    10
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    20
    25
    30
    years
    Assessment of DNA methylation as obtained through DNA methylation arrays.
    Created June 5, 2024 • Updated June 20, 2024

  • 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
     
    0
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    20
    25
    30
    years
    Zygosity typing based on micro-satellite markers, single nucleotide polymorphisms (SNP), or variable number (short) tandem repeats (VNTRs).
    Created June 5, 2024 • Updated June 20, 2024

  • measure Blood sugar markers

    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
     
    0
    5
    10
    15
    20
    25
    30
    years
    Blood sugar markers, for instance Glucose, Insulin, and C-peptide, measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 • Updated June 20, 2024

  • measure Dipstick

    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
     
    0
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    25
    30
    years
    Urinary dipstick (Siemens, Marburg, Germany) was applied to the first thaw of the urine samples either by dipping in the residual urine volume after aliquoting or by dropping urine on the dipstick to screen for signs of infections in the urine and to measure leukocytes, nitrite, proteins, glucose, and blood presence in the urine.
    Created June 5, 2024 • Updated June 20, 2024

  • measure Inflammation markers

    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
     
    0
    5
    10
    15
    20
    25
    30
    years
    Inflammation markers, for instance C-reactive protein (CRP), Lymphocytes, Neopterin, Immunoglobulin E (IgE), Immunoglobulin G (IgG), and tissue Transglutaminase Immunoglobulin A (tTg-IgA), measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 • Updated June 20, 2024
You can also access this registry using the API (see API Docs).