Table 3

Mean total costs per attendance for index patients in January–March 2014 and 2015 and repeated self-harm episodes within 90 days

Unit	Unit costs	2014		2015		Difference
		(n=403 attendance*)		(n=415 attendance*)
		Volume	Costs	Volume	Costs	Volume	Costs
ED attendance
ED	£133.20	0.35	£46	0.32	£42	−0.03	−£4
ED+admission	£205.85	0.65	£134	0.68	£140	0.03	£6
LPS assessment	£187.45	0.55	£103	0.67	£126	0.12	£23
Subtotal ED attendances			£283		£309		£25 (£11 to £39)
Hospital admissions
Observation ward (days)	£405.05	0.97	£391	0.83	£335	−0.1	−£56
ITU (days)	£1058.75	0.03	£29	0.01	£13	−0.02	−£16
Other ward (days)	£405.05	0.20	£80	0.11	£44	−0.09	−£36
Subtotal admissions			£500		£391		−£109 (−£276 to £50)
Mean total costs per attendance			£784		£700		−£84 (−£254 to £77)
Total costs			£315 843		£290 562		−£25 281

*Cost estimates are based on all attendances within 90 days after index attendance; figures may therefore differ slightly from those in table 2.
**95% bootstrap CI based on 1000 bias corrected accelerated bootstraps.
ED, emergency department; ITU, intensive treatment unit; LPS, liaison psychiatric service.