Known risk factors include one-time and ongoing events and condition: *Miscarriage * Childhood separation anxiety * Controlling parents * Parental abuse or death * Close kinship relationship to the deceased (e.g., parents) *Insecure attachment styles * Emotional dependency *Emotional closeness to the deceased before death * Lack of preparation for death * Death in hospital * No shortened rapid eye movement (REM) latency * Activation of the nucleus accumbens These risk factors and clinical correlates have been shown to relate to<unk>  symptoms and not symptoms of major depressive disorder (MDD), posttraumatic stress disorder (PTSD), and generalized anxiety disorder (GAD).
Prolonged grief disorder
Complicated grief disorder
Acute stress disorder
Transference neurosis
Adjustment disorder
Functional somatic syndrome
Posttraumatic embitterment disorder
Malingering of post-traumatic stress disorder