Violent victimisation in post-traumatic stress disorder: a Swedish register-based cohort study

PTSD diagnosis in a Swedish register cohort is linked to higher subsequent violent victimisation, with 18.7% vs 2.7% at 25 years follow-up.

• Why it matters: The study addresses uncertainty about whether diagnosed PTSD predicts later violent victimisation and whether clinical and prevention services should target this risk.
• What they did: Swedish sociodemographic and medical registers were linked to form a matched cohort of 29,688 people with PTSD and 296,880 without PTSD, followed up to 34 years, using ICD hospitalisation codes for violent victimisation and stratified Cox models.
• The result: After adjustment for parental factors, psychiatric comorbidities, and prior violent victimisation, PTSD is associated with an adjusted hazard ratio of 4.0 (95% CI 3.7–4.4), supporting incorporation into violence prevention strategies.

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