Table 2 Acute psychological responses in the Intensive Care Unit (ICU)

(i) Total ICU mood disturbance Mean (SD)

29.00 (13.60)

Scale 0 to 60

27.18 (13.58)

P = 0.42

ii) Total ICU stress reactions Mean (SD)

32.89 (12.81)

Scale 0 to 72

31.62 (11.98)

P = 0.54

a) Physical stress (subscale of ICU stress)

8.61 (4.46)

Scale 0 to 16

7.57 (4.34)

P = 0.72

b) Delirious symptoms (subscale of ICU stress)

8.17 (5.04)

Scale 0 to 20

7.86 (5.49)

P = 0.16

iii) Illness perceptions, Mean (SD)

Range 0 to 10

a) Timeline - how long you think condition will last

6.64 (2.77)

6.44 (2.93)

P = 0.69

b) Concern about condition

7.34 (2.8)

7.09 (3.2)

P = 0.61

c) Control over condition

4 .00 (2.97)

4.62 (3.31)

P = 0.25

d) Understanding condition

7.06 (2.97)

7.41 (3.23)

P = 0.5

e) Emotional representation of condition

5.92 (3.4)

6.24 (3.75)

P = 0.59

iv) Memory No. (%)

a) Memory of initial admission to ICU

Yes

34 (34.3%)

21(37.5%)

P = 0.69

No

65 (65.7%)

35 (62.5%)

b) Memory for whole ICU stay

Little

45 (45.5%)

21 (37.5%)

Some

29 (29.3%)

13 (23.2%)

Most

25 (25.3%)

22 (39.3%)

P = 0.19

c) Presence of early intrusive memories of ICU

Yes

No

49 (49.5%)

50 (50.5%)

24 (42.8%)

32 (57.1%)

P = 0.73

d) Content of early intrusive memories, if experienced

Factual

Delusional

Both/other*

22.6%

20%

6.9%

No data