TABLE 1.

Antimicrobial susceptibilities of E. coli urinary isolates from female outpatients in the United States from 1995 to 2001

Antimicrobial and yra% of isolates
SusceptibleIntermediateResistant
Ampicillin
    199563.10.536.4
    199662.50.636.9
    199763.20.836.0
    199862.30.737.0
    199961.80.837.4
    200062.70.636.7
    200162.10.937.0
Ciprofloxacin
    199599.20.10.7
    199699.300.7
    199799.100.9
    199898.801.2
    199998.301.7
    200097.802.2
    200197.40.12.5
Nitrofurantoin
    199599.10.50.4
    199698.80.50.8
    199798.90.50.6
    199898.80.60.6
    199998.70.70.6
    200098.70.70.6
    200198.31.00.7
SXT
    199585.2014.8
    199683.7016.3
    199784.0016.0
    199883.0017.0
    199983.10.116.8
    200083.40.116.5
    200183.80.116.1
  • a 1,653 isolates were tested in 1995; 10,937 isolates were tested in 1996; 22,748 isolates were tested in 1997; 45,509 isolates were tested in 1998; 64,815 isolates were tested in 1999; 82,460 isolates were tested in 2000; 58,065 isolates were tested in 2001.