Table 1 Cohort demographics

Age: years

61.7 (17.5)^a

Pre ICU hospital days

1.5 (2.9)^a

0.4 (0.2–1.1)^b

ICU annual volume

1192 (702)^a

1063 (570–1859)^b

APACHE III score

54.6 (25.7)^a

ICU LOS: days^d

3.2 (4.9)^a

1.8 (0.9–3.6)^b

1.9 (2.6)^c

Hospital LOS: days

11.8 (13.2)^a

8.1 (4.6–14.0)^b

ANZICS ROD

0.017 (0.005–0.073)^b

Gender: male

58.3% (54,975)

Died ICU

6.5% (6105)

Died hospital

8.8% (8280)

Ventilated: day 1

43.5% (41,003)

Acute renal failure

5.0% (4693)

Cardiac arrest: pre-ICU

3.4% (3076)

Treatment limitation

5.2% (4772)

Hospital Classification

 Metropolitan

16.9% (15,939)

520 (396–1030)^b

 Private

32.8% (30,983)

983 (579–1296)^b

 Rural / Regional

6.4% (6075)

326 (226–449)^b

 Tertiary

43.8% (41,364)

1500 (1063–2105)^b