Table 2 Characteristics of all papers included in the review

Zilberg et al., 1982

A validation of Impact of Event Scale

Patients who lost a parent

Experiences parental bereavement

IES

Stress response syndromes

Mooren et al., 2004

To assess the psychometric value of the Dutch version of the IES

Multiple

Work-related trauma, war-related trauma, disasters

IES

Post- traumatic stress responses

Beck et al., 2008

Factor structure, psychometric features and ability of IES- R to differentiate individuals w/wo PTSD

Motor vehicle accident suvivors

Motor vehicle accident involving actual or threatened death or serious injury

IES-R and CAPS

PTSD

Eid et al., 2009

Reliability and validity of the Norwegian version of IES-R

Psychology students (non-clinical sample)

Indirectly exposed through media reports from a tsunami disaster

IES-R

Post- traumatic stress symptoms

Sveen et al., 2010

Assess the Swedish version of IES and IES-R.

Patients with burns

Burn injury

IES-R and IES

PTSD

Bryant et al., 2011

To assess the capacity of acute stress disorder to predict posttraumatic psychiatric disorders

Trauma patients admitted to hospital after traumatic injury

Traumatic injury such as traumatic fall

Clinical Administered PTSD Scale (CAPS)

Acute stress disorder

Schütte et al., 2012

To examine the predictive variables of PTSD

Police Officers

Experienced traumatic incidence on duty

Structured Clinical Interview for DSM-IV and IES-R

PTSD and Acute Stress Disorder

Waller et al., 2015

Association between number of stressful events and severity of PTSD symptoms.

Australian Defence Force

Stressful events or traumatic experiences on deployment, workplace stressors and relationship/family issues

PCL-C

PTSD

Zijlstra et al., 2015

PTSD-related symptoms among lay rescuers performing CPR

First arriving lay rescuers performing bystander CPR

Participation in resuscitation attempt either by providing CPR or using AED

IES

Post- traumatic stress related symptoms