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Volume 8, Number 5—May 2002

Research

Sentinel Surveillance: A Reliable Way To Track Antibiotic Resistance in Communities?

Stephanie J. Schrag*, Elizabeth R. Zell*, Anne Schuchat*, and Cynthia G. Whitney*
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA

Main Article

Table 3

Ability of sentinel groups of five laboratories to estimate an area’s change in %PNSP and erythromycin-nonsusceptible pneumococci, 1996–1998

Outcome measure Areaa Actual change in % NS pneumococci % sentinel groups within 5 percentage points of the area’s actual change in % NS pneumococci Percent of sentinel groups detecting an increase or decrease in the actual % NS pneumococcic
Penicillin NS CA +3 100 (1) 100
CT +1 67 (15,504)
GA -2 76 (2,002)
MD +7 70 (15,504) 93
MN +6 97 (252) 99
TN 0 45 (462)
Erythromycin NS CA -2 100 (1)
CT +2 95 (15,504)
GA +6 80 (2,002) 86
MD +6 97 (15,504) 99
MN +7 83 (252) 99.6
TN +2.5 51 (462) --

a NY joined ABCs in 1997; the only group of 5 laboratories in OR in 1996 did not match any of the groups in 1998.
bGroups that merged between the 2 years.
cWe limited this analysis to areas with >3% change in either direction.
%PNSP, percent penicillin-nonsusceptible pneumococci; NS, nonsusceptible.

Main Article

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