Digital health interventions to help living with cancer: A systematic review of participants' engagement and psychosocial effects

To systematically review the methodologic quality of, and summarize the evidence from trials examining the effectiveness of physical exercise in improving the level of physical functioning and psychological well-being of cancer patients during and after medical treatment. Thirty-four randomized clinical trials (RCTs) and controlled clinical trials were identified, reviewed for substantive results, and assessed for methodologic quality. Four of 34 trials met all (seven of seven) methodologic criteria on the Delphi criteria list. Failure to conceal the sequencing of treatment allocation before patient recruitment, failure to blind the outcome assessor, and failure to employ an intention-to-treat analysis strategy were the most prevalent methodologic shortcomings. Various exercise modalities have been applied, differing in content, frequency, intensity, and duration. Positive results have been observed for a diverse set of outcomes, including physiologic measures, objective performance indicators, self-reported functioning and symptoms, psychological well-being, and overall health-related quality of life. The trials reviewed were of moderate methodologic quality. Together they suggest that cancer patients may benefit from physical exercise both during and after treatment. However, the specific beneficial effects of physical exercise may vary as a function of the stage of disease, the nature of the medical treatment, and the current lifestyle of the patient. Future RCTs should use larger samples, use appropriate comparison groups to rule out the possibility of an attention-placebo effect, use a comparable set of outcome measures, pay greater attention to issues of motivation and adherence of patients participating in exercise programs, and examine the effect of exercise on cancer survival.

Women with breast carcinoma commonly experience psychologic distress following their diagnosis. Women who participate in breast cancer support groups have reported significant reduction in their psychologic distress and pain and improvement in the quality of their lives. Web-based breast cancer social support groups are widely used, but little is known of their effectiveness. Preliminary evidence suggests that women benefit from their participation in web-based support groups. Seventy-two women with primary breast carcinoma were assigned randomly to a 12-week, web-based, social support group (Bosom Buddies). The group was semistructured, moderated by a health care professional, and delivered in an asynchronous newsgroup format. The results indicate that a web-based support group can be useful in reducing depression and cancer-related trauma, as well as perceived stress, among women with primary breast carcinoma. The effect sizes ranged from 0.38 to 0.54. Participants perceived a variety of benefits and high satisfaction from their participation in the intervention This study demonstrated that the web-based program, Bosom Buddies, was effective in reducing participants' scores on depression, perceived stress, and cancer-related trauma measures. The effect size of the intervention was in the moderate range. Although web-based social support groups offer many advantages, this delivery mechanism presents a number of ethical issues that need to be addressed. Copyright 2003 American Cancer Society.