Impact of PSA testing on secondary care costs in England and Wales: estimates from the Cluster randomised triAl of PSA testing for Prostate cancer (CAP).

Screening men for prostate cancer using prostate-specific antigen (PSA) testing remains controversial. We aimed to estimate the likely budgetary impact on secondary care in England and Wales to inform screening decision makers.

The Cluster randomised triAl of PSA testing for Prostate cancer study (CAP) compared a single invitation to men aged 50-69 for a PSA test with usual care (no screening). Routinely collected hospital care data were obtained for all men in CAP, and NHS reference costs were mapped to each event via Healthcare Resource Group (HRG) codes. Secondary-care costs per man per year were calculated, and cost differences (and population-level estimates) between arms were derived annually for the first five years following randomisation.

In the first year post-randomisation, secondary-care costs averaged across all men (irrespective of a prostate cancer diagnosis) in the intervention arm (n = 189279) were £44.80 (95% confidence interval: £18.30-£71.30) higher than for men in the control arm (n = 219357). Extrapolated to a population level, the introduction of a single PSA screening invitation could lead to additional secondary care costs of £314 million.

Introducing a single PSA screening test for men aged 50-69 across England and Wales could lead to very high initial secondary-care costs.

BMC health services research. 2023 Jun 09*** epublish ***

Joanna C Thorn, Emma L Turner, Eleanor I Walsh, Jenny L Donovan, David E Neal, Freddie C Hamdy, Richard M Martin, Sian M Noble

Bristol Medical School, Population Health Sciences, 1-5 Whiteladies Road, Bristol, BS8 1NU, UK. ., Bristol Medical School, Population Health Sciences, University of Bristol, Canynge Hall, 39 Whatley Road, Bristol, BS8 2PS, UK., Nuffield Department of Surgical Sciences, John Radcliffe Hospital, Oxford, OX3 9DU, UK., Bristol Medical School, Population Health Sciences, 1-5 Whiteladies Road, Bristol, BS8 1NU, UK.