Abstract
OBJECTIVE: Patients with breast cancer experience decreased quality of life due to various physical and psychological challenges. Web-based interventions are accessible, cost-effective, and convenient for improving their quality of life. This study evaluated whether web-based interventions improve quality of life and included only randomized controlled trials (RCTs) with clear evidence. METHODS: PubMed, Embase, Cochrane Library, CINAHL, Web of Science, and PsycINFO were searched for articles published until October 16, 2023. Inclusion criteria were RCTs evaluating the effect of web-based interventions on quality of life in patients with breast cancer. The risk of bias was assessed with Cochrane's Risk of Bias Tool 2.0. Standardized mean differences were calculated with a random effects model using R version 4.0.3, and subgroup and moderator analyses were performed. RESULTS: Since quality of life was measured using two different instruments in two studies, 21 comparisons were analyzed from 19 RCTs. As a result, the findings suggest that web-based interventions have a small effect size on improving the quality of life for patients with breast cancer (SMD = 0.27, 95% confidence intervals [CIs]: 0.15-0.38, p = 0.03). Heterogeneity was found to be low (I(2) = 40%). The quality-of-life subdomain results showed a moderate effect size on the physical functioning and a small effect size on the cognitive and emotional functioning of patients with breast cancer but no significant impact on their role or social functioning. CONCLUSIONS: Web-based interventions are effective in improving patients' quality of life with breast cancer; they also improve physical, cognitive, and emotional functioning. However, evidence regarding intervention methods remains inconclusive due to the limited number of RCTs, necessitating further research.