Eight-Year Surveillance of Uropathogenic <i>Escherichia coli</i> in Southwest China.

Imipenem-resistant UPEC isolates showed an increasing trend ( P = 0.001), while decreasing resistance trends were observed for ampicillin ( P = 0.013), ampicillin/sulbactam ( P = 0.013), ceftriaxone ( P < 0.001), gentamicin ( P = 0.001), tobramycin ( P = 0.011), trimethoprim/sulfamethoxazole ( P = 0.028) ( Table 1 ).

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20 , 21 In the present study, we observed a decreasing trend of ESBL prevalence, which may be attributed to the restricted use of third-generation cephalosporins; even so, the overall prevalence rate was still up to around 50%.

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