Table 1.

	Unmatched Cases			Matched Cases
Risk Factor	No Oral Antibiotic (N = 915)	Oral Antibiotic (N = 638)	p	No Oral Antibiotic (N = 370)	Oral Antibiotic (N = 370)	p
Black	12.3%(113)	9.6%(61)	0.051	12.1%(45)	10.5%(39)	0.281
Male	48.2%(441)	52.5%(335)	.0046	51.1%(189)	51.6%(191)	0.471
Age (mean)	65.9	65.0	0.204	66.1	66.0	0.969
Public Insurance	55.8%(511)	53.1%(339)	0.106	56.5%(209)	57.0%(211)	0.470
Steroids	4.0%(37)	2.4%(15)	0.046	2.4%(9)	2.7%(10)	0.500
Weight Loss	4.3%(39)	2.5%(16)	0.044	4.1%(15)	3.2%(12)	0.348
COPD	5.9%(54)	6.0%(38)	0.517	5.4%(20)	5.1%(19)	0.500
Diabetes	19.5%(178)	16.5%(105)	0.075	20.3%(75)	19.7%(73)	0.927
Sepsis	4.4%(40)	2.4%(15)	0.036	2.7%(10)	2.2%(8)	0.406
Total Dependent	0.3%(3)	0.8%(5)	0.189	0.8%(3)	0.5%(2)	0.500
BMI (mean)	28.0	29.1	0.005	28.8	28.6	0.666
RVU’s (mean)	23.2	23.6	0.000	23.4	23.5	0.746
Open Time (min)	126.4	134.2	0.008	129.0	130.3	0.749
Na (mMol/L) (mean)	139.0	139.4	0.006	139.1	139.4	0.127
PTT (sec) (mean)	29.9	30.7	0.001	30.4	30.3	0.863
Creat (mg/dL) (mean)	0.99	1.02	0.314	1.01	0.99	0.669
Albumin (g/dL) (mean)	3.73	3.77	0.137	3.78	3.79	0.885