• measure Saliva sample

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YC_BS3 YE_ATTEF2 YE_COG12 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    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 Steroid hormones

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YC_BS3 YE_ATTEF2 YE_COG12 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Steroid hormones, for instance Testosterone, Estrogen, Dehydroepiandrosterone (DHEA), and Cortisol, measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Functional Magnetic Resonance Imaging (fMRI)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    MRI
    Available measurements:
    Young Netherlands Twin Register  YC_BS2 YC_BS3 YC_ADHMRI
     
    0
    5
    10
    15
    20
    25
    30
    years
    Functional magnetic resonance imaging (MRI) is a non-invasive technique for examining brain activity. It captures ongoing functional connectivity patterns within the brain, either spontaneously (at rest), or during a specific task.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Reading the Mind in the Eyes Test (RMET)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Reading the Mind in the Eyes Test (RMET) assesses the ability to recognize complex mental states as expressed by human eyes. Participants pick one of four options (e.g. puzzled, nervous, insisting or contemplative) which they think best describes what the person in each photograph is thinking or feeling.
    Created October 17, 2024 • Updated October 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
    5
    10
    15
    20
    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 October 17, 2024 • Updated October 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 October 17, 2024 • Updated October 20, 2024

  • measure Handgrip

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
    0
    5
    10
    15
    20
    25
    30
    years
    Handgrip strength in both hands was measured with a dynamometer (Baseline Digital Smedley Hand dynamometer, Fabrication Enterprises Inc., USA) with one arm at the side of the body and the elbow at a 90 degree angle.
    Created October 17, 2024 • Updated October 20, 2024

  • measure One Minute Reading Task

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YS_7 YC_BS1 YC_BS2 YC_BS3
     
    0
    5
    10
    15
    20
    25
    30
    years
    One subtest of the ‘one minute reading test’ was administered as a measure of technical reading performance, or oral reading fluency. It measures the accuracy and speed of decoding. Children were instructed to read out loud as many words as possible in 1 minute without making errors from a card containing 120 unrelated words.
    Created October 17, 2024 • Updated October 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
    5
    10
    15
    20
    25
    30
    years
    Assessment of DNA methylation as obtained through DNA methylation arrays.
    Created October 17, 2024 • Updated October 20, 2024

  • measure COSMED

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
    0
    5
    10
    15
    20
    25
    30
    years
    COSMED consists of recorded breath-by-breath oxygen uptake (VO2) and carbon dioxide production (VCO2) during exercise measured with a telemetric gas exchange system (Cosmed K4b2, Cosmed Benelux, Nieuwegein, The Netherlands).
    Created October 17, 2024 • Updated October 20, 2024

  • measure GC-MS steroid hormones

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YC_BS3
     
    0
    5
    10
    15
    20
    25
    30
    years
    Gas chromatography mass spectrometry (GC-MS) platform targeting steroid hormones.
    Created October 17, 2024 • Updated October 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
    5
    10
    15
    20
    25
    30
    years
    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 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 October 17, 2024 • Updated October 20, 2024

  • measure Structural Magnetic Resonance Imaging (MRI)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    MRI
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YC_BS3 YC_ADHMRI
     
    0
    5
    10
    15
    20
    25
    30
    years
    Structural magnetic resonance imaging (MRI) is a non-invasive technique for examining the anatomy and pathology of the brain (as opposed to using functional magnetic resonance imaging [fMRI] to examine brain activity).
    Created October 17, 2024 • Updated October 20, 2024

  • measure LC-MS lipidomics

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    Liquid chromatography mass spectrometry (LC-MS) platform targeting lipid species.
    Created October 17, 2024 • Updated October 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
    5
    10
    15
    20
    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 October 17, 2024 • Updated October 20, 2024

  • measure Wechsler Adult Intelligence Scale (WAIS)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS3 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Wechsler Adult Intelligence Scale (WAIS) is an IQ test designed to measure intelligence and cognitive ability in adults and older adolescents. Most versions contain sub tests that represent the following components of intelligence: Verbal Comprehension Index (VCI), Perceptual Reasoning Index (PRI), Working Memory Index (WMI), Processing Speed Index...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Heart rate

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS3 YE_FITNSS YE_ATTEF3 YE_COG18
     
    0
    5
    10
    15
    20
    25
    30
    years
    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 Snellen Chart

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ADHMRI
     
    0
    5
    10
    15
    20
    25
    30
    years
    A Snellen chart is an eye chart that can be used to measure visual acuity. The Snellen chart is printed with eleven lines of block letters. The first line consists of one very large letter, which may be one of several letters, for example E, H, or N. Subsequent rows have increasing numbers of letters that decrease in size. A person taking the test covers...
    Created October 17, 2024 • Updated October 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 October 17, 2024 • Updated October 20, 2024
You can also access this registry using the API (see API Docs).