TABLE 2.

Antibiotic-prescribing patterns^a

Antibiotic class	% prescribed
	Group 1 (before any rapid test results)	Group 2 (before Gram stain result)	Group 3 (after Gram stain result)
Aminopenicillin (±aminoglycoside)	80b	25	14
3rd-generation cephalosporin	18	70	69
Trimethoprim-sulfamethoxazole	2	5	10
Other	0	0	7

^aAntibiotic-prescribing patterns for patients with suspected urinary tract infection based on available information at time of prescription.

^bGroup 1 was more likely than group 2 or 3 to receive aminopenicillin-based therapy (P < 0.001). There were no differences in antibiotics prescribed between group 2 and group 3.