TABLE 2.

Coresistant phenotypes (n = 8,426) among 58,065 E. coli urinary isolates tested against ampicillin, ciprofloxacin, nitrofurantoin, and SXT in 2001

Coresistant phenotypeNo. of coresistant isolates% of coresistant isolates% of all isolates
Ampicillin, SXT6,93882.312.0
Ampicillin, SXT, ciprofloxacin8369.91.4
Ampicillin, ciprofloxacin2412.90.4
SXT, ciprofloxacin1141.40.2
Ampicillin, SXT, nitrofurantoin, ciprofloxacin821.00.1
Ampicillin, nitrofurantoin790.90.1
Ampicillin, SXT, nitrofurantoin700.80.1
Ampicillin, nitrofurantoin, ciprofloxacin220.3<0.1
Ciprofloxacin, nitrofurantoin200.2<0.1
Nitrofurantoin, SXT, ciprofloxacin140.2<0.1
SXT, nitrofurantoin100.1<0.1