---
layout: default
title: NICOR TAVI
parent: Dataset Insights
nav_order: 6
permalink: /docs/dataset_insights/nicor_tavi
---

# NICOR TAVI

<span class="fs-3">
  <a href="https://bhf-dsc-hds.shinyapps.io/cvd-covid-tre-dashboard/" class="btn" target="_blank">Visit the Dataset Summary Dashboard for Data Dictionary, Data Coverage and Data Completeness</a>
</span>

## Description

The UK Transcatheter Aortic Valve Implantation (TAVI) registry has collected data about every TAVI procedure performed in the UK.

For more information see:

<span class="fs-3">
  <a href="https://www.nicor.org.uk/national-cardiac-audit-programme/transcatheter-aortic-valve-implantation-tavi" class="btn" target="_blank">NICOR website</a>
</span>


{: .highlight-title }
> Table Names
>
> &nbsp;
> **Live table**
> >
> dars_nic_391419_j3w9t.nicor_tavi_dars_nic_391419_j3w9t
>
> **Archived table**
> >
> dars_nic_391419_j3w9t_collab.nicor_tavi_dars_nic_391419_j3w9t_archive

## Data Summary Notebook in the SDE:


{: .note-title }
> Need to Know
>
 - Data available from 2018 onwards
 - Records are available for 24,685 individuals 
>

## Notes
- There is a reduction in data coverage around March 2020 when the COVID-19 mitigation measures began in the UK, but this quickly recovers to pre-pandemic levels after a couple of months.
- The number of TAVI procedures is increasing over time (~3900 in 2018 to ~5200 in 2021) - indications for TAVI have broadened in recent years
- The dataset contains 103 columns and 25,281 rows
- Males make up the majority of the dataset (~56%) – aortic stenosis is typically slightly more common in males than females
- The vast majority of the dataset are over 70 years old (~94%) – this is likely due to TAVI procedures only being performed on individuals who are deemed too frail for the standard surgical procedure
- The dataset is mostly of white ethnicity (95%)
- ~53% of patients are from the two least deprived quintiles – possibly due to survival bias.