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Table 4 Comparison of changes in IES-R 1 scores from 6 months postdisaster (T1) to 24 months postdisaster (T2) among respondents with high level of posttraumatic stress at T1 (IES-R ≥33)

From: Posttraumatic stress and symptom improvement in Norwegian tourists exposed to the 2004 tsunami – a longitudinal study

 

IES-R (T1)

IES-R (T2)

Improvement in IES-R

 

Mean (95% CI)

Mean (95% CI)

Mean (95% CI)

Statistical test2

p-value

Referred to a mental health specialist (n = 42)

50.4 (46.7-54.9)

45.3 (39.9-50.6)

5.10 (0.80-9.39)

2.40

0.021

Not referred (n = 171)

45.8 (44.0-47.5)

37.9 (35.4-40.3)

7.90 (5.56-10.2)

6.92

<0.001

  1. 1Impact of Event Scale Revised.
  2. 2Paired samples t-test.
  3. Table 4 shows mean of total IES-R score among respondents with high level of posttraumatic stress at T1 (IES-R ≥33, n = 213) stratified by whether they were referred to a mental health specialist or not. The decline in IES-R score in both groups is tested for statistical significance.
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BMC Psychiatry

ISSN: 1471-244X

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