Additional file 1 of ICU bereaved surrogates’ comorbid psychological-distress states and their associations with prolonged grief disorder

Additional file 1: Online Data Supplement 1: Comparisons of family characteristics across participation status during bereavement follow-ups; Online Data Supplement 2: Model fit indexes for one- to four-state solutions of emotional distress; Online Data Supplement 3: Model fit figures for one- to four-state solutions of emotional distress; Online Data Supplement 4: Levels of symptoms of anxiety, depression, and PTSD across different comorbid-psychological-distress states.