COVID-19 Vaccination Adverse Reactions (CVAR) Dataset#
Last modified: 03 Jul 2025
1. Summary#
Data are collected about people in England who have an adverse reaction to a SARS-CoV-2 vaccination within the first 15 minutes after administration of the vaccine. Data collected include demographic information, vaccination details, vaccine batch details and information about the adverse reaction.
| Dataset Descriptor | Dataset-specific Information |
|---|---|
| Name of Dataset in TRE | NHSE_CVAR |
| Citation (APA) | Data Services, NHS England (NHSE) . (2023). NHS England: COVID-19 Vaccination Adverse Reactions. UK Longitudinal Linkage Collaboration (UK LLC). https://doi.org/10.83126/ukllc-dataset-00056-02 |
| Download Citation | Citeproc JSON BibTeX RIS |
| Series | NHS England |
| Owner | NHS England, Office for National Statistics and Department of Health and Social Care |
| Temporal Coverage in the TRE | 12/2020 - ongoing |
| Geographical Coverage | England |
| Participant Count | 92 |
| Number of Variables | 31 |
| Number of Observations | 100 |
| Key Link | https://digital.nhs.uk/services/data-access-request-service-dars/dars-products-and-services/data-set-catalogue/covid-19-vaccination-adverse-reactions |
| Keywords | COVID-19, Vaccination, Adverse reaction |
| Latest Extract Date | 2023-04-13 |
| Specific Restrictions to Data Use | Research must be related to COVID-19. For examples of research purposes acceptable to NHS England see the COVID-19 Public Health Directions 2020: https://digital.nhs.uk/about-nhs-digital/corporate-information-and-documents/directions-and-data-provision-notices/secretary-of-state-directions/covid-19-public-health-directions-2020 |
| Build a Data Request | https://explore.ukllc.ac.uk/ |
2. Metrics#
Table 2: Please note, individual cohort counts of less than 10 are suppressed to 0 and are therefore excluded from total participant counts for datasets
3. Version History#
| Version Number | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Name in TRE | NHSE_CANCER_20220106 | NHSE_CANCER_20220106 | NHSE_CANCER_20220302 | NHSE_CANCER_20220302 | NHSE_CANCER_20220715 | NHSE_CANCER_20220716 | NHSE_CANCER_20221110 | NHSE_CANCER_20221228 | NHSE_CANCER_20221228 | NHSE_CANCER_20230302 | NHSE_CANCER_20240424 | NHSE_CANCER_20240523 |
| Version Date | 06 Jan 2022 | 06 Jan 2022 | 02 Mar 2022 | 02 Mar 2022 | 15 Jul 2022 | 16 Jul 2022 | 10 Nov 2022 | 28 Dec 2022 | 28 Dec 2022 | 02 Mar 2023 | 24 Apr 2024 | 23 May 2024 |
| Number of Variables | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Number of Rows | 22520 | 22520 | 22728 | 22728 | 2245 | 24973 | 3507 | 27579 | 27579 | 27579 | 33682 | 34039 |
| DOI | 10.83126/ukllc-dataset-00062-02 | 10.83126/ukllc-dataset-00062-01 | 10.83126/ukllc-dataset-00061-01 | 10.83126/ukllc-dataset-00061-02 | 10.83126/ukllc-dataset-00063-01 | 10.83126/ukllc-dataset-00060-01 | 10.83126/ukllc-dataset-00059-01 | 10.83126/ukllc-dataset-00058-01 | 10.83126/ukllc-dataset-00058-02 | 10.83126/ukllc-dataset-00064-02 | 10.83126/ukllc-dataset-00066-02 | 10.83126/ukllc-dataset-00065-02 |
4. Documentation#
We are currently building a documentation storage system, which will host relevant and useful documents related to datasets, groupings, and studies themselves. Relevant documentation for this particular dataset will go here.
5. Useful Syntax#
Below we will include syntax that may be helpful to other researchers in the UK LLC TRE. For longer scripts, we will include a snippet of the code plus a link to Git where you can find the full script