BMC Health Services Research

Table 1 BASELINE medication use and cost in 2007^a

From: Giving formulary and drug cost information to providers and impact on medication cost and use: a longitudinal non-randomized study

	All drugs			Generic drugs			Brand-name drugs
Baseline year (2007)	Control	Study	p-value	Control	Study	p-value	Control	Study	p-value
Medication use
Number of prescriptions	35.5	35.4	0.48	19.9	21.1	0.02*	15.6	14.3	0.13
Total days supply	1233	1233	0.34	675	727	0.003*	558	506	0.11
Total drug cost, $
Per year	3340	3216	0.74	860	925	0.02*	2480	2291	0.29
Per 30-day supply	81	77	0.03*	40	40	0.51	129	127	0.55
Out-of-pocket cost, $
Per year	503	473	0.40	112	120	0.005*	391	353	0.15
Per 30-day supply	12	11	0.01*	5	5	0.11	21	20	0.22

*Statistically significant at p < 0.05
^aMultivariate analyses SAS Proc Mixed 9.4 comparing Control (n = 3061) vs. Study patients (n = 2822), controlling for clustering by provider and controlling for provider specialty. Standard deviations for Baseline medication use and cost in 2007 are available in Additional file 1: Appendix 1.

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ISSN: 1472-6963

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