Eighteen studies (n=1,447) were included in the review: five surveys, three randomised controlled trials (RCT), six qualitative studies, two quasi-experimental studies, one process evaluation and one mixed methods study. The qualitative studies used interviews, focus groups or structured health diaries. Sample sizes ranged from eight to 189. All studies escept one received a 5 out of 5 quality rating; one study was rated 3 out of 5. Seven studies evaluated interventions for end of life care (n=839).
Interventions for end of life care: One RCT (n=189) found that educational programmes with a cognitive-behavioural approach were more successful in improving care by improving control, knowledge and attitudes to pain medication and improving communication with professionals about pain. Pain levels were significantly reduced.
Two RCTs (n=366) investigated symptom-focused interventions. Both these studies reported reduced symptom distress and improvements in pain and psychological symptoms and information. One RCT found patients were more prepared for end of life.