Table 3.

Drug Costs^*

Parameter	Control Group	Intervention Group	P Value
Daily medication costs of all drugs per patient, mean ± SD (median)	26.5 ± 38.8 (10.9)	26.9 ± 27.6 (18.4)	NS
Daily medication costs of drugs with Qo†≤0.3 per patient, mean ± SD (median)	5.9 ± 9.9 (2.0)	5.0 ± 10.0 (1.6)	NS
Daily savings‡ of drugs with Qo ≤0.3 per patient, mean ± SD (median)	0.75 ± 2.8 (0.0§)	5.3 ± 12.3 (1.1)	<.001
Daily savings§ of drugs with Qo ≤0.3 per patient, % of daily medication costs of all drugs before adjustment	2.8	16.5

^*All drug costs are Swiss francs. 1 Swiss franc ≈ US $0.66.

^†Qo is the fraction of the bioavailable dose which is eliminated extrarenally.

^‡Savings is the cost of standard (i.e., unadjusted) dose − cost of actually administered dose.

^§The dose was not adjusted and the difference between standard and administered was 0 in most patients; the median is 0.