were 15.7±4.6 use of a compared randomised SAF: 1.6±0.7 trial is able to with patient ensure a high clinical internal Costs: outcomes validity. and costs of -Variable costs the SAF Real-time: consultation. Validity of estimate of £76.96 measure of The SAF: benefit concordance £20.15 between the diagnostic The benefit and measure was -Fixed costs management specific to the decisions intervention Real-time: considered in £49456*50 made at the study. both SAF: £2380 However, it is not was determined -Savings enough to later by the reflect all the third Real-time: £9.74 benefits consultant derived from SAF: 0 the intervention (e.g. saved -Benefits waiting time (equivalent cost Costs to receive of GP training) treatment).
were compared with patient clinical outcomes and costs of the SAF consultation. The concordance between the diagnostic and management decisions made at both was determined later by the third consultant Costs 15.7±4.6 SAF: 1.6±0.7 Costs: -Variable costs Real-time: £76.96 SAF: £20.15 -Fixed costs Real-time: £49456*50 SAF: £2380 -Savings Real-time: £9.74 SAF: 0 -Benefits (equivalent cost of GP training) use of a randomised trial is able to ensure a high internal validity. Validity of estimate of measure of benefit The benefit measure was specific to the intervention considered in the study. However, it is not enough to reflect all the benefits derived from the intervention (e.g. saved waiting time to receive treatment).
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