In a 1987 study, of 135 people with cancer, who were referred for psychological counseling, 76% of them reported a previous grief experience, and 60% of the cancer patients still had unresolved grief from prior losses.
U studiji 1987. godine, od 135 osoba s karcinomom, koji su sudjelovali u psihološkom savjetovanju, 76% njih iskusilo je prethodnu tugu , a 60 % je i dalje imalo neriješenu tugu iz prethodnih gubitaka.