Table 4

Mortality, hospital LOS, and costs attributable to transfusion exposure among patients on PAMV

Variable

Adjusted estimate

95% confidence interval

Hospital mortality (adjusted odds ratio)

1.21

1.00 to 1.48

Hospital LOS (days)

6.33

5.12 to 7.62

Hospital costs ($)

$48,973

$45,582 to $52,478

Each estimate adjusted for the following confounding variables: age, sex, race, Charlson Comorbidity Index, baseline and nadir hemoglobin, hospital-acquired pneumonia, blood stream infection, gastrointestinal endoscopy, abdominal surgery, cardiac surgery (on and off bypass), and orthopedic surgery. Mortality outcomes were adjusted additionally for hospital LOS. Hospital LOS and cost outcomes were adjusted for mortality. LOS, length of stay; PAMV, prolonged acute mechanical ventilation.

Zilberberg et al. Critical Care 2008 12:R60   doi:10.1186/cc6885