Which THREE of the following would be most important if a hospital wishes to review...

For reviewing the effectiveness of hospital services, the focus is on quality of care and outcomes:

A. Proportion of surgical procedures successful – direct clinical effectiveness measure ✅

B. Average waiting times for treatment – key access and service delivery metric ✅

C. Patient satisfaction ratings – captures perceived quality and experience ✅

Options D (staff costs) and E (car park revenue) are financial/operational efficiency measures, not direct indicators of service effectiveness, so they are less relevant here.