TABLE 5.
Random-Effects Logistic Regression Analysis of Institution-Level Factors Associated with Efficiency of International Classification of Diseases, Ninth Revision (ICD-9), Code Search for Emergency Department (ED) Visits for Blood or Body Fluid Exposure
| OR (95% CI) |
||
|---|---|---|
| Institution-level factor | Model 1a | Model 2b |
| Hospital type | ||
| Community | Reference | Reference |
| Academic | 1.53 (0.89, 2.61) | 1.82 (0.97, 3.41) |
| Hospital location | ||
| Nonurban area | Reference | Reference |
| Urban area | 0.47 (0.27, 0.81) | 0.73 (0.38, 1.39) |
| Presence of dual databases | ||
| Not present | Reference | Reference |
| Present | 0.59 (0.42, 0.83) | 0.65 (0.39, 1.06) |
| No. of hospital bedsc | 1.02 (0.90, 1.17) | 1.06 (0.91, 1.24) |
| Year | ||
| 1995 | Reference | Reference |
| 1996 | 0.96 (0.69, 1.33) | 0.79 (0.45, 1.40) |
| 1997 | 1.70 (1.22, 2.36) | 0.87 (0.49, 1.54) |
| 1998 | 1.31 (0.94, 1.81) | 1.16 (0.67, 2.02) |
| 1999 | 1.00 (0.72, 1.39) | 1.65 (0.97, 2.80) |
| 2000 | 0.81 (0.57, 1.15) | 1.28 (0.74, 2.22) |
| 2001 | 1.82 (1.29, 2.57) | 1.41 (0.79, 2.52) |
NOTE. CI, confidence interval; OR, odds ratio.
a
Model using all 10 ICD-9 codes.
b
Model using ICD-9 codes V71.5, V15.85, 995.53, E920.5, 995.83, and combinations thereof.
c
Results reported in units of 100 beds.