Table 2.

The estimated costs of care for each patient. Hydrocortisone tablet costs were estimated using the patient prescriptions and prices indicated in the British National Formulary (BNF) 64 (2012). The costs of the CSHI pump and consumables were calculated by the pricings charged to the hospital trust. Admission costs were estimated using NHS admissions Healthcare Resource Group (HRG) codes

	Estimated cost of admissions and hospital treatment in the 12 months before CSHI	Annual cost of hydrocortisone tablets	Estimated cost of admissions and hospital treatment in the 12 months after CSHI	Average annual CSHI cost (pump and consumables)	Total estimated cost of treatment burden before CSHI	Total estimated cost of treatment burden after CSHI
Patient 1	£11 223	£1207	£4469	£4554	£12 430	£9023
Patient 2	£17 668	£1225	£5781	£4554	£18 893	£10 335
Patient 3	£6872	£1207	£2796	£4554	£8079	£7350