Table 5.

Therapeutic outcomes of drug-related problems during hospitalisation

Therapeutic outcome	Intervention group		Control group		P value	RRR or RBI (95% CI)	NNT (95% CI)
	No of DRPs N (%)	No of patients N (%)	No of DRPs N (%)	No of patients N (%)
Number of DRPs during hospitalisation	545	63	517	60		NA	NA
Resolved or improved	132 (24.2)	30 (47.6)	64 (12.4)	14 (23.3)	0.01	104.3% (RBI) (20.5% to 245.6%)	4.1 (2.5 to 12.7)
Prevented	240 (44.0)	42 (66.7)	35 (6.8)	6 (10.0)	<0.0001	567% (RBI) (205.9% to 1352.8%)	1.8 (1.4 to 2.5)
Not changed	161 (29.5)	23 (36.5)	403 (77.9)	56 (93.3)	<0.0001	60.9% (RRR) (55.5% to 71.9%)	1.8 (1.4 to 2.3)
Worsened	12 (2.2)	6 (9.5)	15 (2.9)	12 (20.0)	0.71	52.5% (RRR) (−18.8% to 80.9%)	9.5 (4.4 to 53.1)

DRP, drug-related problem; NNT, number needed to treat; RBI, relative benefit increase; RRR, relative risk reduction.