TABLE 2.

MRSA-targeted antibiotic therapy outcomes

Parameter	Pre-PCR (n = 27)	PCR (n = 30)	Difference	P value	95% CI
Duration of therapy
Hours	74 ± 48.9	27.4 ± 18.7	46.6	<0.0001	27.3–65.8
Days	4.0 ± 2.0	2.13 ± 0.86	1.9	<0.0001	1.06–2.67
Total i.v.a vancomycin doses	4.2 ± 3.1	1.7 ± 1.5	2.44	0.005	1.12–3.77
Total i.v. vancomycin (mg)	5,394.4 ± 3,483.5	2,865 ± 2,579.8	2,529.4	0.003	912.9–4,145.9
Vancomycin level obtained (%)	13 (48.1)	5 (16.7)	31.4	0.02
No. of vancomycin levels (%)
0	14 (51.9)	25 (83.3)
1	8 (29.6)	5 (16.7)
2	5 (18.5)	0 (0)
Per patient avg no. of levels	0.67	0.17	0.50

^ai.v., intravenous.