• 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
     
    0
    5
    10
    15
    20
    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
     
    0
    5
    10
    15
    20
    25
    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
     
    0
    5
    10
    15
    20
    25
    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
    5
    10
    15
    20
    25
    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
     
    0
    5
    10
    15
    20
    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 Sleep and sleep habits

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_2 YS_5 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS2 YE_FITNSS YS_TRIP age 2
     
    0
    5
    10
    15
    20
    25
    30
    years
    Sleep and sleep habits comprises questions about the amount of sleep and sleeping habits, such as "How many hours a night do you sleep on average during a school week/working week?", "How much does your twin sleep?", and "Do/did the twins sleep together in the same room?"
    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
     
    0
    5
    10
    15
    20
    25
    30
    years
    Substance use was assessed, including tabacco, alcohol, and (recreational) drugs.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Children’s Behavior Questionnaire (CBQ)

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_5
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Children’s Behavior Questionnaire (CBQ) is a caregiver report that measures temperament in children aged 3 to 7 years. Domains of the CBQ include positive and negative emotion, motivation, activity level, and attention.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Social Skills Rating System (SSRS)

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_TRF5 YS_TRF7 YS_TRF10 YS_TRF12
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Social Skills Rating System (SSRS) is a broad, multi-rater assessment of social behaviors that assesses teacher-student relations, peer acceptance, and academic performance  in pre-school, elementary, and secondary students.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Glasses and Eye sight

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_5
     
    0
    5
    10
    15
    20
    25
    30
    years
    Glasses and Eye sight assesses the wearing of glasses, far- or near-sightedness, amblyopia (lazy eye), and squinting since birth.
    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
    5
    10
    15
    20
    25
    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 Shared environment

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_5 YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS2 YC_DSC YE_ATTEF2 YC_ADHMRI YE_COG12
     
    0
    5
    10
    15
    20
    25
    30
    years
    Shared environment contains questions about bedroom sharing of the twins/triplets, and about wearing the same clothing as the co-twin/triplet.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Toilet Training

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_5
     
    0
    5
    10
    15
    20
    25
    30
    years
    Toilet training contains questions about toilet training and bedwetting of the child, such as "How often How often do the children pee/poop in their pants?" and "How old were the children when they were completely clean during the day/at night?"
    Created October 17, 2024 • Updated October 20, 2024

  • measure Handedness questionnaire

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_5
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Handedness questionnaire contains 7 items on hand preference during drinking, eating, drawing, etc.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Learning difficulties

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_TRF5 YS_7 YS_TRF7 YS_10 YS_TRF10 YS_12 YS_TRF12 YC_BS1 YC_BS2 YE_ATTEF2 YC_ADHMRI YE_COG18 YS_TRIP age 4 YS_TRIP age 7 YS_TRIP age 10 YS_TRIP age 12
     
    0
    5
    10
    15
    20
    25
    30
    years
    Learning difficulties consists of questions about learning difficulties at or outside of school, including dyslexia and dyscalculia.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Revisie Amsterdamse Kinder Intelligentie Test (RAKIT)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF1 YE_COG10
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Revisie Amsterdamse Kinder Intelligentie Test (RAKIT) assesses intelligence quotient (IQ) in children between 4 and 11 years old.
    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
     
    0
    5
    10
    15
    20
    25
    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
     
    0
    5
    10
    15
    20
    25
    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 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
     
    0
    5
    10
    15
    20
    25
    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 Aandachttekort Stoornis met Hyperactiviteit (ASH)

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF1
     
    0
    5
    10
    15
    20
    25
    30
    years
    The Aandachttekort Stoornis met Hyperactiviteit (ASH) questionnaire is based on the 14 items of Attention Deficit/Hyperactivity Disorder (ADHD) as used in the DSM-III. The child’s behavior is rated on a four point scale varying from “not at all” to “very often”. Items are related to attention deficit, impulsivity, and hyperactivity.
    Created October 17, 2024 • Updated October 20, 2024
You can also access this registry using the API (see API Docs).