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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 4

Univariate analysis of characteristics of hospitals with a high or low %PNSP compared with hospitals with an average %PNSPa

High vs. average %PNSP
Low vs. average %PNSP
Hospital characteristic No.
Odds ratio p value No.
Odds ratio p value
High Avg Low Avg
Adjusted inpatient daysb 0.02 0.06
0-66,452 11 7 Refc 8 7 Ref
66,453-104,771 5 11 0.29 0.09 10 11 0.80 0.73
104,772-146,879 6 17 0.23 0.03 3 17 0.15 0.02
>146,879 3 16 0.12 0.007 7 16 0.38 0.17
Total beds set up and staffed 0.04 0.25
0-173 11 8 Ref 7 8 Ref
174-300 6 11 0.40 0.18 10 11 1.04 0.96
301-413 4 16 0.19 0.02 5 16 0.36 0.16
>414 4 16 0.19 0.02 6 16 0.43 0.23
Adult medical/surgical and ICU beds
0-16 15 19 Ref 17 19 Ref
>16 7 26 0.31 0.05 9 29 0.39 0.06
Pediatric medical/surgical and ICU beds
0-10 13 20 Ref 16 20 Ref
>11 9 25 0.55 0.26 10 25 0.50 0.17
Hospital with a pediatric ICU
No 18 35 Ref 22 35 Ref
Yes 4 10 0.78 0.70 4 10 0.64 0.49
Medicaid inpatient days 0.10 0.36
0-3,730 9 10 Ref 7 10 Ref
3,731-8,797 7 10 0.78 9 10 1.3 0.71
8,798-19,477 7 15 0.52 4 15 0.38 0.20
>19,477 2 16 0.14 8 16 0.71 0.61
Medicare inpatient days 0.04 0.02
0-18,246 10 6 Ref 10 6 Ref
18,247-29,026 5 12 0.25 0.06 9 12 0.45 0.24
29,027-45,471 5 18 0.17 0.01 3 18 0.10 0.005
>45,471 5 15 0.20 0.03 6 15 0.24 0.04
Metropolitan statistical area size
<1 million population 5 10 Ref 5 10 Ref
>l million population 20 41 0.98 0.97 23 41 1.12 0.84

aHigh %PNSP was defined as >5 percentage points above the surveillance area % of penicillin-nonsusceptible pneumococci (PNSP) ; low as >5 percentage points below the surveillance area %PNSP; average as <5 percentage points above or below the surveillance area %PNSP.
bAdjusted inpatient days were calculated as Inpatient Days + (Inpatient Days * [Outpatient Revenue/Inpatient Revenue]).
cRef=Referent group.
ICU, intensive-care unit.

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