TwinsUK - The UK Adult Twin Registry Datasets#
Last modified: 28 May 2026
1. Datasets#
Table 1: Datasets and metrics in the UK LLC belonging to TWINSUK.
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| Dataset | Dataset Name | # Participants | # Observations | # Variables |
|---|---|---|---|---|
| SEROLOGY | Covid-19 antibody response | 4753 | 15600 | 9 |
| COPE4 | COVID-19 personal experience questionnaire wave 4 | 4428 | 4429 | 331 |
| COPE5 | COVID-19 personal experience questionnaire wave 5 | 3456 | 3462 | 178 |
| COPE6 | COVID-19 personal experience questionnaire wave 6 | 4109 | 4109 | 239 |
| INFECTION | Covid-19 infection status | 6430 | 6430 | 4 |
| METABOLOMICS | Serum metabolomics 1994- 2014 | 2066 | 4830 | 238 |
| METABOLOMICS2 | Serum metabolomics 1996-2021 | 1063 | 1515 | 253 |
| COPE1 | COVID-19 personal experience questionnaire wave 1 | 3623 | 3623 | 227 |
| COPE3 | COVID-19 personal experience questionnaire wave 3 | 4823 | 4823 | 268 |
| FAMILY | Family structure | 15435 | 15731 | 4 |
| COPE2 | COVID-19 personal experience questionnaire wave 2 | 4847 | 4847 | 324 |
| DEMOGRAPHICS | Demographics | 15731 | 15731 | 9 |