Odds of post-traumatic stress syndrome (PTSD) symptoms associated with loss events and past psychiatric history among injured and uninjured surveyed participants eight months after tornado impact (N = 298).

aPTSD screening based on Breslau's Short Screening Scale for PTSD (7 dichotomous items); 4 points was the cut-off used for presence of PTSD. bLoss events, and number of loss events adjusted for age, race, sex, own tornado injury and past psychiatric history; own tornado injury adjusted for age, sex, race, number of loss events and past psychiatric history; past psychiatric history adjusted for age, sex, race, number of loss events, and own tornado injury. cReference category is answer “no” to respective item. dMultiple positive responses allowed.