Volume 9, Number 9—September 2003
Research
Aggregated Antibiograms and Monitoring of Drug-Resistant Streptococcus pneumoniae
Table 2
Comparison of percent of Streptococcus pneumoniae isolates nonsusceptible to third-generation cephalosporins by site: active surveillance (ABCs) versus antibiograms
Site | Antibiogram | ABCs | Difference in % nonsusceptible (antibiograms vs. ABCs) | ||||||
---|---|---|---|---|---|---|---|---|---|
No. laboratoriesa | Non-susceptible isolates | Total no. isolates tested | % non-susceptible | No. laboratories | Non-susceptible isolates | Total no. isolates tested | % non-susceptible | ||
Tennessee | 10 | 54 | 357 | 15.1 | 31 | 114 | 440 | 25.9 | –10.8 |
New York | 3 | 2 | 84 | 2.4 | 20 | 5 | 69 | 7.2 | –4.8 |
California | 4 | 14 | 412 | 3.4 | 10 | 15 | 184 | 8.1 | –4.7 |
Connecticut | 5 | 19 | 267 | 7.1 | 32 | 73 | 624 | 11.7 | –4.6 |
Oregon | 6 | 34 | 419 | 8.1 | 15 | 14 | 178 | 7.9 | 0.2 |
Maryland | 5 | 53 | 476 | 11.1 | 27 | 48 | 557 | 8.6 | 2.5 |
Minnesota | 7 | 104 | 543 | 19.2 | 25 | 60 | 435 | 13.8 | 5.4 |
Georgia | 14 | 222 | 1272 | 17.5 | 39 | 102 | 850 | 12.0 | 5.5 |
Total | 54 | 502 | 3,830 | 13.1 | 199 | 431 | 3,337 | 12.9 | Median: –2.25 |
aOnly laboratories whose antibiograms covered the calendar year in question (1997 for all sites except NY [1998]) were compared to ABCs.
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