Table 1 Patient characteristics at the time of intensive care unit presentation described using APACHE II, SAPS II, and the new models

Body temperature (°C)^{AII, SII}

37 (0.73)

37 (0.75)

3533 (91.6)

Heart rate^{AII, SII}

109 (24)

100 (24)

3419 (88.7)

Age (years), median (range)^{AII, SII}

54 (16–102)

56 (16–103)

3509 (91)

Respiratory rate^{M1, M2, M3, AII}

24 (8)

23 (6)

2733 (70.9)

Systolic blood pressure (mmHg)^{M1, M2, AII, SII}

132 (35)

139 (29)

2828 (73.4)

Diastolic blood pressure (mmHg)^{AII, SII}

75 (19)

79 (16)

3527 (91.5)

Glasgow Coma Score, median (range)^{M1, M2, M3, AII, SII}

9 (2–15)

15 (2–15)

3372 (87.5)

PaO₂ (mmHg) median (range)^{AII, SII}

150 (1.4–242)

150 (0.4–267)

423 (11)

pH^AII

7.3 (0.15)

7.4 (0.13)

512 (13.3)

WBC^{AII, SII}

21.3 (27.2)

18.6 (23.8)

2228 (57.8)

PCV %^AII

34.7 (8.5)

35.8 (7)

463 (12)

Serum creatinine (mg/dL) median (range)^AII

1.4 (0.3–11.3)

1.2 (0.4–18)

496 (12.9)

Potassium (mEq/L)^{AII, SII}

4.2 (1.04)

4.1 (0.77)

2774 (72)

Sodium (mEq/L)^{AII, SII}

137.7 (8.9)

137.1 (6.9)

2785 (72.2)

Blood urea nitrogen (mg/dL) median (range)^{M1, M2, SII}

59 (0.6–411)

32 (0.9–672)

1936 (50.2)

Haemoglobin (g/dL)^{M1, M2}

10.8 (2.8)

11.6 (2.4)

1869 (48.5)

Vasopressor use count (%)^M1

572 (64.34)

1860 (91.31)

2951 (76.5)

Mechanical ventilation count (%)^{M1, SII}

899 (87)

2054 (79)

2978 (77.3)

FiO₂, median (range)^{AII, SII}

35 (21–100)

21 (21–100)

2323 (60.3)

Urine output, median (range)^SII

1150 (0–7400)

1300 (0–12000)

2469 (64)

Bicarbonate (mEq/L)^SII

22.3(5.4)

22.5 (6.5)

361 (9.4)

Bilirubin (mg/dL) median (range)^SII

1.1 (0.1–39)

0.7 (0.1–56)

1272 (33)