Table 5

Psychological impairment

Dimensions

'High-scoring patients (n = 18)

'Low-scoring patients' (n = 44)

t test

t

d.f.

p

Somatization

69 ± 11

56 ± 12

- 3.92

60

0.0001

Obsessive-compulsive

68 ± 10

50 ± 11

- 6.20

60

0.0001

Interpersonal sensitivity

68 ± 11

49 ± 10

- 6.63

60

0.0001

Depression

70 ± 13

49 ± 9

- 6.21

60

0.0001

Anxiety

72 ± 8

52 ± 10

- 7.12

60

0.0001

Hostility

69 ± 11

50 ± 9

- 6.94

60

0.0001

Phobic anxiety

67 ± 10

50 ± 9

- 6.28

60

0.0001

Paranoid ideation

66 ± 9

49 ± 10

- 6.30

60

0.0001

Psychoticism

70 ± 9

49 ± 9

- 8.62

60

0.0001

Global Severity Index

73 ± 8

51 ± 11

- 7.60

60

0.0001

Psychological impairment is shown on the basis of scales of the Symptom Checklist-90-R (SCL-90-R); scores are given as means ± SD. For each of the 90 items a rating on a five-step Lickert scale between 0 (not at all) and 4 (extremely) was possible. Data are presented as T values (mean 50; SD 10). In addition, T values of all patients are presented. For comparison between 'high-scoring patients' with a Post-Traumatic Stress Syndrome 10-Questions Inventory (PTSS-10) score greater than or equal to the cutoff score of 35, indicating an increased risk for development of post-traumatic stress disorder, and 'low-scoring patients' with a PTSS-10 below the cutoff score, a t test for independent samples was used.

Deja et al. Critical Care 2006 10:R147   doi:10.1186/cc5070