Table 1.

PICOS, inclusion criteria and exclusion criteria applied to database search.

PICOS	Inclusion criteria	Exclusion criteria
Population	Military (Army, Navy, Air Force, Marines, Coast Guard, medics, and Reservists/National Guard), civilians, refugees, prisoners-of-war from countries directly involved in war Population in countries of war and conflict (direct organized armed violence, terrorism, insurgence, espionage etc), where violence is the one of the means of coercion	2nd or 3rd generation survivors of war, civilians not from countries directly involved in war, non-deployed military, pregnant cohort, cohorts comparing medical conditions (skewed cohorts)
Intervention	–	Population that only underwent psychiatric interventions
Comparison	Military and civilian During, post-war (3-months after conflict official end date)	–
Outcome	Depression, anxiety, post-traumatic stress The outcomes of interest were depression, anxiety and PTSD, but studies containing any one of depression, anxiety, PTSD, or substance or alcohol misuse were included to ensure that no studies reporting the psychiatric symptoms of interest were missed. The study provided enough information to generate an odds ratio (OR) by subgroups.	Combat anxiety, alcohol or substance use disorders The sample was based on clinical or injured or treatment/help-seeking population/s, including studies based on data from Veterans Affairs (VA) treatment facilities.
Study designs	Clinical trials, randomized controlled trials, cross sectional, case control, retrospective outcome study, prospective study Published or translated in English	–