Summary & Timescale of the Data
The data collection period was from 1 January 2014 to 31 December 2016.
6769 procedures were recorded from 215 consultants at 124 centres in the United Kingdom, including 210 private patients from 52 consultants. Nine of the consultants returning data are not BAUS members.
Hospital Episode Statistics (HES) for 2014 to 2016 indicate that there were 4,416 PCNL cases in England. We do not believe that HES data accurately record the total number of procedures undertaken, as we are aware there are differences in the way this procedure is coded by different units. However, we do think we have received a very good response from the surgeons undertaking this procedure, and we estimate that we have collected data on about 90% of the procedures undertaken in England during this time period.
- Median number of cases per consultant: 23 (range 1 - 162)
- Median number of cases per centre: 41 (range 1 - 277)
All data were entered by hand; there was no bulk uploading of data from other systems.
Timeline for 2014 to 2016 data
| 13 Feb 2017 |
Deadline for submission of data to BAUS |
| 28 Feb 2017 |
Summaries of data returned to Consultant contributors for validation |
| 28 Mar 2017 |
Second summary of data sent to Consultant contributors for validation |
| 18 Apr 2017 |
Final deadline for corrections and additional data |
| 19 April 2017 |
Data extracted from the web-based database. Once extracted, the data was transferred to a Microsoft Access™ database for validation before being imported into Tableau™ for generation of the analyses |
| 26 April 2017 |
All contributing surgeons sent a link to the website so they could check exactly how their data would be presented |