Netherlands Twin Registry – International HundredK+ Cohorts Consortium (IHCC)

Cohort : Netherlands Twin Registry

PI(s) / Lead(s) : Dorret Boomsma

Regions : Netherlands

Features
Genomic Data	Yes
Environmental Data	Yes
Biospecimens	Yes
Phenotypic-Clinical Data	Yes
Data Sharing Potential	Yes

Enrollment
Current/Target	275,000.00
Start /End	1987	ongoing

Core COVID-19 Self-Report Downloads

Coming Soon

Why Do I need to Register ?

We are asking for this information in order to measure where the questionnaire is being used, and by whom.

We may follow-up with you in the future for additional feedback on how you have used questionnaire.

We will not use your email address for marketing, and will not share it with any third parties.

Core COVID-19 Phone Survey Downloads

The PDF and Rich Text (Word doc compatible) documents, include the core survey questions, which should be customized for local administration.

The CSV file contains the REDCap data dictionary, containing all core questions and skip logic. It should also be customized for local administration.

Ancillary questions are not part of the core questionnaire, but can be used for additional data capture.

If using the questionnaire, please include the citation on the previous page. If you have any questions about the survey, please contact John Connolly.

Phone Core Survey

Title	Version	Date modified	Download
COVID-19 Phone Core Survey REDCAP	2	28-07-2020	Download
COVID-19 Phone Core Survey PDF	2	28-07-2020	Download Preview
COVID-19 Phone Core Survey RTF	2	28-07-2020	Download

Phone Ancillary Survey

Title	Date modified	Download
COVID-19 Phone Ancillary Survey	29-07-2020	Download
COVID-19 Phone Ancillary Survey	29-07-2020	Download Preview
COVID-19 Phone Ancillary Survey (REDCAP)	29-07-2020	Download

International HundredK+ Cohorts Consortium (IHCC)

Linking cohorts, understanding biology, improving health