Table 2

Difference in length of stay and hospital mortality among the three study periods

Outcome

Pre-protocol N = 2,677

Transition N = 3,513

Protocol 2,196


Observed mortality, %, (95% CI)

19.3 (17.8 – 20.8)

18.0 (16.7 – 19.3)

16.9 (15.4 – 18.5)

ICU length of stay, days, median (IQR)

1.6 (0.85–3.29)

1.4 (0.84–2.98) *

1.7 (0.91–3.14)

28-day ICU free days, days, mean ± SD

20.4 ± 10.6

20.8 ± 10.3

21.1 ± 10.0*


CI = confidence interval; ICU = intensive care unit; IQR = interquartile range; SD = standard deviation

* P < 0.05 compared to pre-protocol period

Afessa et al. BMC Emergency Medicine 2007 7:10   doi:10.1186/1471-227X-7-10

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