Table 3.

Costs

	Value in model	Upper	Lower	Distribution in PSA	References
Cost per CRP test only
Test material (reagent)	£4.19				Alere [13]
Depreciation of machine	£1.34				Alere [13]
Cost of GP training	£0.40				Alere [13]
Duration of test: GP (min)	3	3.75	2.25	Gamma	Alere [13]
Cost per minute: GP	£3.80				PSSRU [15]
Duration of test: nurse (min)	5	6.25	3.75	Gamma	Alere [13]
Cost per minute: nurse	£0.87				PSSRU [15]
Cost per antibiotic prescription	£3.11	£3.88	£2.33	Gamma	Health and Social Care Information Centre [14]
One-off cost per patient of communication training	£5.52				Alere [13]
Unit costs
GP consultation	£45.00	£56.00	£34.00	Gamma	PSSRU [15]
GP out of hours	£114.00	£143.00	£85.00	Gamma	PSSRU [15]
Hospital outpatients	£135.00	£158.00	£91.00	Gamma	PSSRU [15]
Hospital admission	£697.00	£846.00	£479.00	Gamma	PSSRU [15]
Chest X-ray	£122.00	£137.00	£74.00	Gamma	NHS Reference Costs [16]
Blood	£4.00	£5.00	£1.00	Gamma	NHS Reference Costs [16]
Other (sputum, spirometry)	£51.00	£75.00	£45.00	Gamma	NHS Reference Costs [16]

CRP C-reactive protein, GP general practitioner, NHS National Health Service, PSA probabilistic sensitivity analysis, PSSRU Personal Social Services Research Unit