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Table 2 Association between concern over radiation exposure and psychological distress among participating DMAT members

From: Concern over radiation exposure and psychological distress among rescue workers following the Great East Japan Earthquake Concern over radiation exposure and distress

  Men (n = 279) Women (n = 145)
  concerned not concerned   statistics concerned not concerned   statistics
  (n =23) (n = 256)    (n = 16) (n = 129)   
  Mean ± SD Mean ± SD p value p value* Mean ± SD Mean ± SD p value p value*
K6 total score 7.2 ± 5.8 2.5 ± 3.4 <.001 <.001 7.0 ± 5.0 4.1 ± 4.1 .011 .023
CES-D total score 16.3 ± 9.7 10.2 ± 6.8 <.001 <.001 18.4 ± 10.8 13.1 ± 8.7 .025 .084
PDI total score 20.0 ± 8.7 11.4 ± 6.5 <.001 <.001 18.7 ± 9.1 14.4 ± 7.2 .032 .072
IES-R total score 22.3 ± 19.3 8.5 ± 9.7 <.001 <.001 19.1 ± 14.1 11.6 ± 11.8 .021 .026
  1. DMAT disaster medical assistant team, SD standard deviation, K6 Kessler 6 scale, CES-D Center for Epidemiologic Studies Depression Scale, PDI Peritraumatic Distress Inventory, IES-R Impact of Event Scale-Revised.
  2. *controlled for age, occupation, disaster operation experience, duration of time spent watching earthquake news, and past history of psychiatric illness
  3. Cronbach’s alpha: for K6 = .89, for CES-D = .85, for PDI = .83, for IES-R = .94.