Table 2

Discharge prescribing practices before and after intervention

20162019P value
Oral morphine equivalents (mg)210.0 (150.0–300.0)146.3 (90.0–160.0)<0.001
 Hip replacement200.0 (150.0–280.0)150.0 (75.0–200.0)0.01
 Knee replacement210.0 (150.0–300.0)120.0 (100.0–150.0)<0.001
Dispensed strong opioid (per cent)151 (71.6)94 (46.8)<0.001
 Hip replacement59 (67.8)31 (44.3)0.008
 Knee replacement92 (74.2)63 (48.1)<0.001
Dispensed morphine (per cent)58 (38.4)41 (43.6)0.43
 Hip replacement21 (36.5)15 (48.4)0.27
 Knee replacement37 (40.2)26 (41.3)1
Dispensed sustained release drug (per cent)66 (43.7)7 (7.4)<0.001
 Hip replacement19 (32.2)2 (6.5)0.002
 Knee replacement47 (51.1)5 (7.9)<0.001
Paracetamol (percent)210 (99.5)197 (98.0)0.21
 Hip replacement86 (98.9)69 (98.6)1
 Knee replacement124 (100.0)128 (97.7)0.25
Paracetamol regularly (per cent)118 (56.2)117 (59.4)0.55
 Hip replacement47 (54.7)42 (60.9)0.51
 Knee replacement71 (57.3)75 (58.6)0.9
NSAID (per cent)37 (17.5)81 (40.3)<0.001
 Hip replacement19 (21.8)28 (40.0)0.02
 Knee replacement18 (14.5)53 (40.5)<0.001
NSAID regularly (per cent)12 (32.4)47 (75.8)<0.001
 Hip replacement10 (52.6)16 (72.7)0.21
 Knee replacement2 (11.1)31 (77.5)<0.001
NSAIDs (per cent)<0.001
 Celecoxib4 (10.8)57 (87.7)
 Diclofenac11 (29.7)2 (3.1)
 Etoricoxib0 (0.0)1 (1.5)
 Ibuprofen19 (51.4)5 (7.7)
 Naproxen3 (8.1)0 (0.0)
Tramadol (per cent)83 (39.3)124 (61.7)<0.001
 Hip replacement35 (40.2)42 (60.0)0.02
 Knee replacement48 (38.7)82 (62.6)<0.001
Gabapentinoids (per cent)6 (2.8)35 (17.4)<0.001
 Hip replacement0 (0.0)14 (20.0)<0.001
 Knee replacement6 (4.8)21 (16.0)0.004
Proton pump inhibitor (per cent)7 (3.3)86 (42.8)<0.001
Antiemetics (per cent)85 (40.3)70 (34.8)0.27
Laxatives (per cent)169 (80.1)167 (83.1)0.45