Table 2

Procedure prescription sizes in February 2017 and May 2019

ProcedureTotal N (%)Mean (SD) prescription size in pills of 5 mg oxycodoneP value*
Preguideline
release
Postguideline v1
release
Postguideline v2
release
Postguideline v3
release
Minor hernia repair10 455 (29.0)25 (17)19 (12)13 (8)11 (8)<0.001
Major hernia repair1921 (5.3)28 (18)22 (13)16 (10)14 (9)<0.001
Vaginal hysterectomy1755 (4.9)23 (13)23 (13)17 (12)14 (7)<0.001
Total abdominal hysterectomy1347 (3.7)29 (18)30 (52)18 (9)16 (7)<0.001
Open colectomy1427 (4.0)34 (33)28 (30)18 (16)15 (10)<0.001
Laparoscopic colectomy1426 (4.0)27 (19)22 (11)16 (11)15 (11)<0.001
Laparoscopic hysterectomy3773 (10.5)25 (14)22 (14)16 (10)14 (8)<0.001
Laparoscopic appendectomy3599 (10.0)22 (12)17 (15)11 (6)10 (5)<0.001
Laparoscopic cholecystectomy10 319 (28.6)23 (16)17 (10)12 (9)11 (7)<0.001
Total36 02225 (17)20 (17)14 (9)12 (8)<0.001
  • *P value is for the pair-wise comparison of before any guideline release to after the final guideline release.