Table 4.

Medication omissions from medication chart

Type of medication and perioperative plan	Control (N) [%]	Intervention (N) [%]
Regular
Continue	179 (805) [22.2]	3 (620) [0.5]
Withhold prior to surgery	46 (75) [7.4]	0 (48)
Withhold on morning of surgery	21 (54) [38.9]	0 (39)
Adjust dose	1 (5) [20.0]	0 (5)
Review	1 (7) [14.2]	0 (6)
Cease	0 (1)	0 (2)
PRN
Continue	128 (248) [51.6]	6 (142) [4.2]
Withhold prior to surgery	7 (12) [58.3]	2 (13) [15.4]
Adjust dose	0 (2) [20.0]	0 (1)
Review	0 (8) [14.3]	0 (11)
Total omissions	383 (1217) [31.5]	11 (887) [1.2]
Complementary and alternative medicines (CAMs)*	126	87
Over-the-counter medications (OTC)*	21	9

*CAM and OTC medications were not classed as omissions in either arm if they were not prescribed on the inpatient medication chart.