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Table 4 Incidence rate ratios of intravascular device related Staphylococcus aureus blood stream infections for services provided by public hospitals in Queensland, Australia.

From: Improved hospital-level risk adjustment for surveillance of healthcare-associated bloodstream infections: a retrospective cohort study

Medical services

GEE Poisson with a log linka

  

IRR

SE†

(95% CI)†

P-value

Infectious diseases

3.35

0.89

(1.99 to 5.64)

< .001

Plastic surgery

0.46

0.13

(0.26 to 0.81)

.008

Maintenance renal dialysis

1.50

0.25

(1.08 to 2.08)

.016

Oncology

1.89

0.26

(1.44 to 2.48)

< .001

QIC

507.79

    
  1. aAR 2 correlation
  2. † exchangeable standard errors were scaled by square root of Pearson χ2-based dispersion.