Table 2.
Bivariate Associations Between Facility Characteristics and Carbapenem-Resistant Enterobacteriaceae Rates (per 10 000 Patient-days) Among Illinois Acute Care Hospitals During, 2014
| Variable | Absolute Rate Differencea | 95% Confidence Interval | P Value | |
|---|---|---|---|---|
| Lower | Upper | |||
| No. of patients shared with an LTACHb | ||||
| 0 | ref | … | ||
| 1–3 | 0.0 | −.6 | .7 | .94 |
| 4–6 | 1.2 | .1 | 2.3 | .03 |
| 6–9 | 1.2 | .0 | 2.4 | .05 |
| 10+ | 1.3 | .5 | 2.2 | .002 |
| No. of patients shared with an LTACH, dichotomous | ||||
| 0–3 | ref | … | ||
| 4+ | 1.1 | .4 | 1.9 | .003 |
| County location | ||||
| Rural | ref | … | ||
| Non-Chicago urban | 4.6 | 1.3 | 8.0 | <.001 |
| Chicagoland | 6.2 | 1.0 | 11.3 | <.001 |
| Hospital bedsc | ||||
| 0–100 | ref | … | ||
| 101–300 | 0.39 | −.28 | 1.1 | .25 |
| 300+ | −0.08 | −1.05 | .9 | .87 |
| Degree centrality (each additional connection) | 0.09 | .02 | .15 | .009 |
Abbreviation: LTACH, long-term acute care hospital.
a
The mean rate was 1.0 per 10 000 patient-days; thus, a rate difference of 1.0 is equivalent to a 2-fold increase above the base rate.
b
P value <.001 for the test of trend across the ordered categories.
c
P value = .75 for the test of trend.