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Annals of Intensive Care

Table 2 Characteristics of SAPS II admission categories

From: Long-term survival and quality of life after intensive care for patients 80 years of age or older

 

Planned surgery (n = 50)

Unplanned surgery (n = 213)

Medical reasons (n = 132)

Total (n = 395)

p value

Age, mean ± SD

83.5 ± 2.7

84.0 ± 2.7

83.5 ± 3.2

83.8 ± 2.9

0.217a

Male, %

64.0

60.6

60.6

61.0

0.889b

Length of stay (LOS), median (IQR)

     

 ICU-LOS

2.0 (1.0–4.4)

2.2 (1.0–5.0)

1.2 (0.6–2.6)

1.8 (0.9–3.9)

<0.001b

 Hospital LOS

15.1 (10.2–26.2)

12.9 (4.3–20.6)

6.5 (2.0–14.3)

11.3 (4.0–19.3)

<0.001b

Ventilator support

     

 Mechanical ventilator support, % (n)

48.0 (24)

69.5 (148)

53.0 (70)

61.3 (242)

0.001b

 Mechanical ventilator support time, median (IQR)

1.1 (0.4–3.7)

1.3 (0.5–3.8)

0.9 (0.3–2.0)

1.2 (0.5–3.3)

0.050b

 Non-invasive ventilator support, % (n)

44.0 (22)

33.8 (72)

28.0 (37)

29.6 (47)

0.119b

 Non-invasive ventilator support time, median (IQR)

1.2 (0.5–2.6)

2.0 (0.6–3.0)

1.0 (0.3–2.0)

1.3 (0.4–2.5)

0.056b

Severity score, mean ± SD

     

 SAPS II

39.0 ± 13.2 (n = 47)

44.6 ± 14.8 (n = 212)

45.6 ± 15.6 (n = 131)

44.3 ± 15.0 (n = 390)

0.030a

 Max. SOFA

6.3 ± 4.1 (n = 47)

8.3 ± 3.6 (n = 212)

7.5 ± 3.8 (n = 130)

7.8 ± 3.8 (n = 389)

0.002a

Comorbidity

     

 Charlson comorbidity index, mean ± SD

3.2 ± 1.8 (n = 50)

2.5 ± 2.0 (n = 209)

2.5 ± 1.7 (n = 131)

2.6 ± 1.9 (n = 390)

0.050a

 Charlson comorbidity index (CCI) categories, % (n)

     

 None (CCI 0)

4.0 (2)

13.4 (28)

13.7 (18)

12.3 (48)

0.159b

 Mild (CCI 1–2)

34.0 (17)

43.1 (90)

39.7 (52)

40.8 (159)

0.436b

 Moderate (CCI 3–4)

46.0 (23)

26.3 (55)

36.6 (48)

32.3 (126)

0.009b

 Severe (CCI ≥5)

16.0 (8)

17.2 (36)

9.9 (13)

14.6 (57)

0.163b

Severe organ dysfunction, % (n)

     

 Respiration

68.0 (34)

71.8 (153)

56.8 (75)

66.3 (262)

0.016b

 Circulation

38.0 (19)

53.1 (113)

40.9 (54)

47.1 (186)

0.035b

 Renal

30.0 (15)

28.6 (61)

26.5 (35)

28.1 (111)

0.868b

 CNS

20.0 (10)

23.5 (50)

32.6 (43)

26.1 (103)

0.100b

 Coagulation

16.0 (8)

8.5 (18)

9.8 (13)

9.9 (39)

0.273b

 Liver

2.0 (1)

0.0 (0)

3.0 (4)

1.3 (5)

0.034d

Survival, % (n)

     

 ICU

90.0 (45)

74.2 (158)

73.5 (97)

75.9 (300)

0.045b

 Hospital

84.0 (42)

54.9 (117)

57.6 (76)

59.5 (235)

0.001b

 30 days

86.0 (43)

51.2 (109)

54.5 (72)

56.7 (224)

<0.001b

 90 days

82.0 (41)

44.6 (95)

50.8 (67)

51.4 (203)

<0.001b

 180 days

74.0 (37)

40.4 (86)

47.7 (63)

47.1 (186)

<0.001b

 1 year

68.0 (34)

37.1 (79)

40.2 (53)

42.0 (166)

<0.001b

 2 years

59.9 (28)

33.1 (64)

33.6 (39)

36.6 (130)

0.001b

 3 years

48.4 (15)

27.8 (50)

29.9 (32)

31.2 (96)

0.088b

 5 years

32.8 (7)

18.6 (28)

23.7 (22)

22.2 (55)

0.290b

Diagnostic groups, % (n)

     

 Respiratory failure

44.0 (22)

24.4 (52)

28.0 (37)

28.1 (111)

0.021b

 Circulatory failure

8.0 (4)

8.5 (18)

7.6 (10)

8.1 (32)

0.959b

 Combined respiratory and circulatory failure

8.0 (4)

12.7 (27)

7.6 (10)

10.4 (41)

0.270b

 Neurologic failure

2.0 (1)

7.0 (15)

18.2 (24)

10.1 (40)

<0.001b

 Isolated head injury

0.0 (0)

1.9 (4)

4.5 (6)

2.5 (10)

0.165d

 Sepsis

4.0 (2)

8.9 (19)

10.6 (14)

8.9 (35)

0.308d

 Gastroenterological failure

0 (0)

5.6 (12)

5.3 (7)

4.8 (19)

0.276d

 Multiple organ failure

4.0 (2)

7.5 (16)

3.0 (4)

5.6 (22)

0.205d

 Multitrauma without head injury

0.0 (0)

5.6 (12)

2.3 (3)

3.8 (15)

0.107d

 Multitrauma with head injury

0.0 (0)

2.3 (5)

3.0 (4)

2.3 (9)

0.638d

 Planned surgery

18.0 (9)

1.4 (3)

0.8 (1)

3.3 (13)

<0.001d

 Acute operation

2.0 (1)

10.3 (22)

2.3 (3)

6.6 (26)

0.004d

 Unspecified

10.0 (5)

3.8 (8)

6.8 (9)

5.6 (22)

0.150d

 SMR (95 % CI)

0.55 (0.28–1.11) (n = 47)

1.15 (0.94–1.40) (n = 212)

1.05 (0.81–1.37) (n = 131)

1.06 (0.90–1.23) (n = 390)

 
  1. Survival times were derived from the life table method
  2. IQR interquartile range, SD standard deviation, CI confidence interval, ICU intensive care unit, SAPS II simplified acute physiology score II, SOFA sequential organ failure assessment, CCI Charlson comorbidity index, SMR standardized mortality ratio
  3. aWith ANOVA (analysis of variance)
  4. bPearson’s chi-square test
  5. cWith Kruskal-Wallis test
  6. dFisher’s exact test
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