[Influence of pain perception, morbidity and mood on functional impairment in elderly chronic pain patients]

The purpose of the study was to address the impact of pain perception, morbidity and mood on functional impairment in elderly chronic pain patients. Multimorbid pain patients beyond the age of 65 in two geriatric hospitals (n = 84), a pain clinic (n = 60) and three general practices (n = 117) provided information about pain perception, comorbidity, additional symptoms and mood by means of the "Structured Pain Interview for Geriatric Patients", the "Cumulative Illness Rating Scale" and a list of symptoms. Data analysis relied on stepwise multiple regression with variables of pain perception entered in the first step, of morbidity entered in the second step and of mood entered in the third step. Although patients believe that pain is the main reason for their functional impairment (71.3%), the data do not support this assumption. Increasing morbidity and bad mood have more impact to reduced functional performance than the pain perception. Our results support the recommendation that a multimodal program should be offered to even multimorbid and older people with chronic pain in order to achieve a maximum of functional rehabilitation.