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Table 1 Background characteristics of the study population and survey question frequency data (N = 674)

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

Age at time of tsunami, years (mean, range) 43.0, 18-81
  n %
Gender   
  Male 315 46.7
  Female 359 53.3
Married or cohabiting prior to the tsunami   
  Yes 477 71.8
  No 187 28.2
Married or cohabiting at T1   
  Yes 452 70.3
  No 191 27.7
Education   
  < 13 years 276 41.1
  ≥ 13 years 396 58.9
Employed prior to the tsunami   
  Yes 495 73.4
  No 179 26.6
Employed at T1   
  Yes 467 69.3
  No 207 30.7
Pre-tsunami mental health problems   
  No 505 75.7
  Yes 162 24.7
Chased or caught by the waves   
  No 424 64.3
  Yes 235 35.7
Witnessed abandoned children, death or suffering of others   
  No 249 37.9
  Yes 408 62.1
Loss of family members or close friends   
  No 622 92.7
  Yes 49 7.3
Experienced intense fear, helplessness, or horror   
  No 191 30.7
  Yes 431 69.3
Referred to a mental health specialist   
  No 611 90.7
  Yes 63 9.3
Experienced ≥2 adverse life events last 12 months at T2   
  No 438 65.6
  Yes 230 43.4