Sources of data
| Data provider | Data source | Dates available | Indicative/key data items | Data set | |
| Data set 1 (routine sampling) | Data set 2 (systematic sampling) | ||||
| SAIL (Wales) | GP | January 1994 to October 2016 | Secondary outcomes including antibiotic prescriptions, GP consultations, chronic kidney disease, hypertension | ✓ | ✓ |
| Patient Episode Database for Wales (PEDW) | January 1994 to April 2017 | Primary and secondary outcomes and covariates including renal scarring, hospital admission, end-stage renal failure, VUR, renal/bladder surgery | ✓ | ✓ | |
| Welsh Demographic Service (WDS) | January 1994 to April 2017 | Demographics | ✓ | ✓ | |
| Welsh Electronic Cohort of Children (WECC) | January 1994 to September 2011 | Defines a child as ‘born in Wales’ | ✓ | ✓ | |
| Datastore (data repository storing microbiology culture data from the Laboratory Information Management Systems in Wales) | 2005–2014 | Defines a microbiologically confirmed UTI | ✓ | ✓ | |
| Outpatient data | January 1994 to April 2017 | Primary outcome—renal scarring | ✓ | ✓ | |
| Individual Health Boards | Radiology data | January 1994 to January 2017 | Validation of the primary outcome (renal scarring) | ✓ | |
| NHS Digital (England) | Admitted patient care | April 2008 to March 2017 | Primary and secondary outcomes and covariates including renal scarring, hospital admission, end-stage renal failure, VUR, renal/bladder surgery | ✓ | |
| Outpatient | April 2008 to March 2017 | Primary outcome—renal scarring | ✓ | ||
| Bristol University (England and Wales) | DUTY | April 2010 to April 2012 | Baseline characteristics, UTI status, presenting symptoms and signs, initial clinical management | ✓ | |
| Cardiff University (Wales) | EURICA | July 2008 to July 2010 | Baseline characteristics, UTI status, presenting symptoms and signs, initial clinical management | ✓ | |
DUTY, Diagnosis of Urinary Tract infection in Young children; EURICA, Welsh cohort study of urinary tract infection in children; GP, general practice; SAIL, Secure Anonymised Information Linkage; UTI, urinary tract infection; VUR, vesicoureteric reflux.