TABLE 3.

Patient outcomes and resource utilization stratified by stool-testing modality

Variable	GI PCR (n = 9,402)a	Culture (n = 5,986)a	P value
Endoscopy within 30 days
No procedures	8,615 (91.6)	5,410 (90.4)	0.008
Any procedure	787 (8.4)	576 (9.6)	0.008
Upper endoscopy	480 (5.1)	302 (5.0)	0.862
Sigmoidoscopy	71 (0.8)	46 (0.8)	0.920
Enteroscopy	10 (0.1)	7 (0.1)	0.841
Colonoscopy	453 (4.8)	223 (3.7)	0.007
Emergency department visit within 30 days	1,158 (12.3)	789 (13.2)	0.116
Radiology within 30 days
Any abdominal radiology	2,760 (29.4)	1,897 (31.7)	0.002
Abdominal X ray	1,364 (14.5)	861 (14.4)	0.831
Barium enema	20 (0.2)	12 (0.2)	0.871
CT abdomen/pelvis	1,195 (12.7)	796 (13.4)	0.290
CT enterography	10 (0.1)	8 (0.1)	0.629
Esophagram	83 (0.9)	19 (0.3)	0.001
HIDA	22 (0.2)	24 (0.4)	0.064
MR abdomen/pelvis	275 (2.9)	156 (2.6)	0.243
MR enterography	58 (0.6%)	38 (0.6)	0.890
Upper GI series	67 (0.7)	362 (6.0)	0.001
Ultrasound abdomen	1,103 (11.7)	753 (12.6)	0.115
Nonabdominal radiology			0.001
CT chest	953 (10.1)	557 (9.3)	0.091
Chest X ray	2,908 (30.9)	2,042 (34.1)	0.001
Any radiology	4,521 (48.1)	2,759 (46.1)
Antibiotics within 14 days
Any antibiotic	3,408 (36.2)	2,449 (40.9)	0.001
Metronidazole	235 (2.5)	3 (0.1)	0.001
Penicillin	1,366 (14.5)	1,158 (19.3)	0.001
Cephalosporin	1,259 (13.4)	939(15.7)	0.001
Carbapenem	519 (5.5)	370 (6.2)	0.086
Aminoglycoside	516 (5.5)	483 (8.1)	0.001
Quinolone	804 (8.6)	612 (10.2)	0.001
Macrolide	456 (4.9)	390 (6.5)	0.001
Tetracycline	50 (0.5)	81 (1.4)	0.001
Length of stay from test to discharge
Median (IQR)	5 (2–13)	5 (2–13)
Mean (SD)	12.4 (21.9)	11.8 (20.0)	0.087

^aAll values are number (percent) unless otherwise indicated.