Table 9.

Types of irrational medication use reviewed by system.

	Item	Pre-pandemic I		Pre-pandemic II		During-pandemic		Post-pandemic		Total	Ratio/%
		case	ratio/%	case	ratio/%	case	ratio/%	case	ratio/%
Type	OLI	58	70.72	118	43.7	236	52.56	149	49.34	561	50.86
	OLI; MESP	6	7.32	66	24.44	56	12.47	55	18.22	183	16.60
	MESP	7	8.54	28	10.38	65	14.48	34	11.26	134	12.15
	OLI; DDI	1	1.22	28	10.38	41	9.13	38	12.58	108	9.79
	DDI	2	2.44	12	4.44	21	4.68	22	7.28	57	5.17
	MESP; DDI	0	0	8	2.96	12	2.67	3	0.99	23	2.09
	OLI; MESP; DDI	0	0	9	3.33	11	2.45	1	0.33	21	1.9
	OLI; UDE	7	8.54	0	0	0	0	0	0	7	0.63
	UDE	0	0	1	0.37	4	0.89	0	0	5	0.45
	OLI; UDE; DDI	0	0	0	0	2	0.45	0	0	2	0.18
	MESP; UDE	1	1.22	0	0	1	0.22	0	0	2	0.18
	Total	82	100	270	100	449	100	302	100	1103	100
Number of irrational problems	1	67	81.71	159	58.89	326	72.60	205	67.88	757	68.63
	2	15	18.29	102	37.78	110	24.50	96	31.79	323	29.28
	3	0	0	9	3.33	13	2.90	1	0.33	23	2.09
	Total	82	100	270	100	449	100	302	100	1103	100

OLI, off-label indications.

MESP, medication errors of special population.

DDI, drug-drug interaction.

UDE, usage and dosage errors.