Bereaved families are still embittered after the Sewol ferry accident in Korea: A follow-up study 18 and 30Â months after the disaster

Embitterment of bereaved families had not ceased after 18 months and even increased 1 year later. Additionally, as embitterment increased, many other psychiatric symptoms also increased, and vice versa. Our results suggest that embitterment is associated or can even influence other psychiatric symptoms; therefore, embitterment should be examined after disasters.