Table 2.

Mean resource use and cost by APEX trial treatment group for total hip replacements (available cases)

	Intervention					Control
	N	Mean resource use	(SD)	Mean cost	(SD)	N	Mean resource use	(SD)	Mean cost	(SD)
Initial inpatient stay
Theatre time (in minutes)	148	99	29	£1,407	£411	147	101	31.6	£1,441	£449
Recovery time (in minutes)	143	103	65	£397	£251	144	113	77.4	£435	£297
Days in wards	153	5.2	3.3	£1,597	£1,516	154	5.2	2.8	£1,553	£886
Secondary care after initial discharge
Inpatient admissions after initial discharge a	115			£341	£1,847	122			£101	£554
Orthopaedics appointments	142	1.96	1.2	£199	£121	146	1.97	1.4	£201	£138
Physiotherapy appointments	142	0.19	0.8	£7	£32	146	0.23	0.8	£9	£30
Accident and emergency visits	142	0.06	0.4	£7	£46	146	0.04	0.3	£5	£30
Other appointments	142	0.04	0.3	£5	£37	146	0.04	0.3	£7	£59
Community-based resources
GP contacts combined	107	1.90	3.3	£61	£113	108	2.66	4.5	£83	£145
Nurse contacts combined	110	1.60	4.1	£25	£70	114	1.24	2.7	£18	£41
Occupational therapist contacts combined	113	0.04	0.4	£1	£7	116	0.08	0.5	£1	£8
Community physiotherapist contacts combined	109	0.25	1.1	£4	£19	113	0.58	1.8	£10	£30
Prescribed medications a	113			£22	£77	120			£21	£55
Total NHS cost b	92			£3,773	£1,557	87			£3,762	£1,065
Personal social services (PSS)
Home care worker (in hours)	139	1.11	8.1	£27	£195	144	5.36	56.3	£129	£1,351
Meals (food at home services)	137	2.76	24.0	£9	£75	138	0.00	0.0	£0	£0
Contacts with social worker	138	0.05	0.5	£4	£36	144	0.13	1.1	£7	£59
Home changes a	161			£1	£3	158			£2	£5
Total NHS+PSS cost b	88			£3,837	£1,642	85			£3,948	£2,108

^a The category combines different types of resource use, therefore an overall mean resource use could not be calculated

^b Total costs computed for patients with complete cost categories