Table 1

Case mix, outcome and activity of admissions following traumatic brain injury by type of unit

Measures of case mix, outcome and activity

n (percent), mean (SD) or median (IQR)


Number of admissions, n (percent of database)

11,021 (3.0)

Age (years), mean (SD)

44.0 (19.9)

Reason for admission, n (percent)

Primary brain injury

6,400 (58.1)

Subdural haematoma

3,631 (32.9)

Extradural haematoma

990 (9.0)

Admission following emergency surgery, n (percent)

2,233 (20.3)

First 24 h GCSa, mean (SD)

7.3 (4.5)

Pre-sedation GCSb, mean (SD)

6.8 (3.6)

APACHE II scorec, mean (SD)

14.3 (7.4)

Mortality, deaths (percent)

ICU

2,534 (23.0)

Hospitald

3,453 (33.5)

Length of stay (days), median (IQR)

ICU

Survivors

3.2 (1.1–8.1)

Non-survivors

1.6 (0.7–4.0)

Hospitald

Survivors

24 (10–51)

Non-survivors

3 (1–9)


aAdmissions not sedated for the entire first 24 h. bAdmissions sedated for the entire first 24 h. cExcluding admissions staying <eight hours in the ICU. dExcluding readmissions within the same hospital stay. APACHE, Acute Physiology And Chronic Health Evaluation; GCS, Glasgow Coma Score; ICU, intensive care unit; IQR, interquartile range; SD, standard deviation.

Hyam et al. Critical Care 2006 10(Suppl 2):S2   doi:10.1186/cc5066

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