 Cancer of the head and neck HNC, lung LC, upper gastrointestinal channel CUGI and colo-rectal cancer CRC accounts for approximately 40 of cancer incidence in elderly people defined as 70 years in Denmark DK. The four cancers account for more than 50 of the annual cancer-related deaths in DK. Incidence and mortality of cancer increases with age. Comorbidity simultaneous presence of several medical conditions are more present in older cancer patients than in younger This means that older cancer patients are more vulnerable by physiological, psychological and social means than younger. Older cancer patients frequent develop side effects of cancer treatment than younger cancer patients. 