Breast Test Wales (BTW)

Data Providing Organisation:
Public Health Wales NHS Trust

Data Providing Type:
Registry data



Administrative and clinical information for breast screening; routine screening is currently offered to women who are resident in Wales aged 50 to 70 years. Older women can self-refer.

Data Collection Method

SQL relational database.

Data Highlights

This dataset contains all individuals who are eligible for breast screening: routine invitations, self-referrals and family history screening women.

Access Requirements

As a restricted dataset, that requires the agreement of the data provider in addition to our standard Information Governance procedure.

More Information

See the BTW website for more information and to view their published reports.


Approx. 5500 assessment and 110,000 screening test records per year

Data Level

Individual person

Data Years

Data available from February 1989 onwards

SAIL Schema