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Table 2 Chronological data analyses on IES-R and K10

From: The effects of living environment on disaster workers: a one–year longitudinal study

 

1 month

6 months

12 months

P value

IES-R total, mean (s.d.)

6.2 (7.7)

3.1 (4.7)

2.9 (4.7)

<0.001c

 IES-R intrusion, mean (s.d.)

2.4 (3.1)

1.3 (2.0)

1.2 (1.9)

<0.001c

 IES-R avoidance,mean (s.d.)

2.3 (3.6)

1.1 (2.3)

1.0 (2.2)

<0.001c

 IES-R hyperarousal, mean (s.d.)

1.5 (2.3)

0.7 (1.5)

0.7 (1.4)

<0.001c

High-PTSRa group, n (%)

56 (3.7)

12 (0.8)

11 (0.7)

<0.001d

K10, mean (s.d.)

12.6 (4.2)

11.0 (2.5)

11.1 (2.4)

<0.001c

High-GPDb group, n (%)

33 (2.2)

8 (0.5)

7 (0.5)

<0.001d

  1. IES-R Impact of Event Scale-Revised, PTSR post-traumatic stress response, K10 Kessler Psychological Distress Scale, GPD general psychological distress
  2. aDefined according to the Japanese version of the Impact of Events Scale-Revised (≥25)
  3. bDefined according to the Japanese version of the Kessler Psychological Distress Scale (≥25)
  4. cFriedman test, Multiple comparisons with Bonferroni correction: 1 month > 6 months, 12 months, p < 0.001
  5. dCochran’s Q test, Multiple comparisons with Bonferroni correction: 1 month > 6 months, 12 months, p < 0.001