Table 3.

Total 2-year costs (2013 British pounds), cases (postoperative pain (PPP)) versus propensity score matched control cohort (no PPP)

	No PPP (n=1756) Mean (SD)	PPP (n=1756) Mean (SD)	Difference	(95% CIs)
Inpatient	£1651 (3537)	£4152 (5160)	£2501	(2202 to 2811)
Outpatient attendances	£673 (944)	£1204 (1159)	£531	(456 to 604)
Outpatient procedures	£134 (469)	£221 (593)	£87	(51 to 121)
Accidents and emergency	£48 (130)	£73 (163)	£25	(15 to 35)
Primary care	£3169 (2562)	£4616 (3011)	£1447	(1263 to 1661)
Pain medications	£370 (2310)	£1161 (4342)	£791	(574 to 1027)
Total costs	£6044 (6712)	£11 427 (9304)	£5383	(4872 to 5916)