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Table 3 Health-related quality of life for the ICU patients aged younger than 75 years, answered at 6, 12, 24 and 36 months after discharge (n = 388) and reference group (n = 6093)

From: Pre-existing disease: the most important factor for health related quality of life long-term after critical illness: a prospective, longitudinal, multicentre trial

   

ICU patients

ICU patients

ICU patients

ICU patients

 
  

Reference group

6 months

12 months

24 months

36 months

P value

SF-36

 

(n = 6093)

(n = 388)

(n = 388)

(n = 388)

(n = 388)

 

   PF

Mean

87.86

66.29

68.20

70.07

68.76

<0.001 †

 

SD

19.29

29.15

29.53

28.41

28.90

 
 

CI (95%)

87.38:88.35

63.35:69.22

65.24:71.16

67.23:72.91

65.88:71.65

 
 

Median

95.0

75.0

75.0

75.0

75.0

<0.001 ‡

   RP

Mean

82.63

47.78

56.51

57.77

59.21

<0.001 †

 

SD

33.06

44.48

43.95

42.92

43.07

 
 

CI (95%)

81.79:83.48

43.29:52.27

52.08:60.95

53.46:62.07

54.87:63.55

 
 

Median

100

50.0

75.0

75.0

75.0

<0.001 ‡

   BP

Mean

73.70

62.34

63.93

64.38

63.98

<0.001 †

 

SD

25.47

29.68

29.12

29.15

30.07

 
 

CI (95%)

73.06:74.34

59.35:65.33

61.01:66.86

61.47:67.30

60.98:66.98

 
 

Median

84.0

62.0

62.0

62.0

62.0

<0.001 ‡

   GH

Mean

73.10

57.75

59.83

58.38

58.41

<0.001 †

 

SD

21.52

24.01

25.17

25.91

25.60

 
 

CI (95%)

72.55:73.65

55.33:60.18

57.30:62.36

55.78:60.98

55.86:60.97

 
 

Median

77.0

57.0

62.0

57.0

57.0

<0.001 ‡

   VT

Mean

65.75

56.18

58.43

57.08

56.64

<0.001 †

 

SD

22.52

24.62

23.94

23.96

24.46

 
 

CI (95%)

65.18:66.32

53.70:58.65

56.03:60.84

54.68:59.48

54.20:59.08

 
 

Median

70.0

55.0

60.0

60.0

55.0

<0.001 ‡

   SF

Mean

86.68

73.00

76.92

76.62

75.39

<0.001 †

 

SD

21.03

26.94

25.36

26.12

26.04

 
 

CI (95%)

86.15:87.21

70.29:75.71

74.38:79.47

74.00:79.23

72.79:77.99

 
 

Median

100

75.0

87.5

87.5

81.2

<0.001 ‡

   RE

Mean

85.36

68.01

69.76

69.38

71.71

<0.001 †

 

SD

30.25

41.55

40.74

40.98

39.99

 
 

CI (95%)

84.58:86.13

63.77:72.25

65.64:73.89

65.25:73.51

67.68:75.74

 
 

Median

100

100

100

100

100

<0.001 ‡

   MH

Mean

78.82

71.88

73.79

72.88

72.19

<0.001 †

 

SD

18.69

21.93

20.59

21.76

21.09

 
 

CI (95%)

78.35:79.30

69.67:74.08

71.72:75.85

70.70:75.06

70.08:74.29

 
 

Median

84.0

76.0

80.0

80.0

76.0

<0.001 ‡

  1. Study group compared with reference group; † P value for mean (T-Test), ‡ P value for median (Wilcoxon)
  2. BP, bodily pain; CI, confidence interval; GH, general health; MH, mental health; PF, physical functioning; RE, role limitations due to emotional problems; RP, role limitations due to physical problems; SD, standard deviation; SF, social functioning; SF-36, short form health outcome;VT, vitality.