Non-hospital antimicrobial usage and resistance in community-acquired Escherichia coli urinary tract infection
Abstract
OBJECTIVES: To investigate the correlation between non-hospital antimicrobial consumption and resistance. METHODS: Information on the non-hospital sales of antimicrobials from 14 European countries in 1997 and 2000 was compared with the antimicrobial resistance profiles of Escherichia coli isolated from women with community-acquired urinary tract infection in the same countries in 1999/2000. RESULTS: There was no statistically significant correlation between the consumption of and resistance to co-amoxiclav, cefadroxil, fosfomycin, mecillinam, sulfamethoxazole, trimethoprim or trimethoprim-sulfamethoxazole. On the other hand, there were statistically significant correlations between consumption of broad-spectrum penicillins and quinolones in 1997 and 2000 and resistance to ciprofloxacin (P range 0.0005-0.0045) and nalidixic acid (P range 0.0013-0.0049). Total antimicrobial consumption in 1997 was significantly correlated to ciprofloxacin (P=0.0009) and nalidixic acid (P=0.0018) resistance, and there were significant relationships between quinolone consumption in both years and resistance to gentamicin (P range 0.0029-0.0043) and nitrofurantoin (P range 0.0003-0.0007). E. coli with multiple antimicrobial resistance were significantly more common in countries with high total antimicrobial consumption. CONCLUSIONS: Owing to the frequent presence of many possible confounding factors, antimicrobial resistance to one drug does not always correlate well to the consumption of the…
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