Psychological interventions intended to support couples coping with prostate cancer have shown little to no improvement in their relationship functioning, a new meta-analysis has revealed. Despite the increasing awareness of prostate cancer as a condition that affects not only patients but also their partners, efforts to bolster relationships through psychological support have so far produced underwhelming results. The findings were published in the journal Psycho-Oncology.
Conducted by researchers from the University of Edinburgh, the review analysed data from 23 studies involving over 3,300 participants. These studies assessed the impact of various psychological interventions, ranging from cognitive-behavioural therapy and psychoeducation to mindfulness and supportive counselling. The goal was to determine whether such interventions could enhance relationship satisfaction, communication, and overall dyadic functioning between couples navigating the complexities of prostate cancer.
The findings, however, indicate that these interventions yielded only a trivial and statistically non-significant effect on relationship outcomes. In statistical terms, the overall impact was close to zero, and even after removing outlier studies, no meaningful improvement could be identified. The authors suggest several possible reasons for these results, including poor sensitivity in the tools used to measure relationship quality and the inclusion of participants who already had strong relationships, leaving little room for improvement.
Interestingly, the analysis did identify two factors that may influence outcomes. Interventions delivered to individuals rather than jointly to couples appeared to have a greater positive effect. Additionally, those that included six or more sessions were more likely to yield benefits than shorter programmes. These findings suggest that flexibility in delivery format and commitment to longer-term support may be key considerations in future designs.
Another challenge identified was the difficulty in recruiting diverse and representative samples. Most of the study participants were middle-class, white, and in long-term relationships, which may have skewed the results. Their pre-existing resilience and access to support networks could have contributed to the high baseline scores in relationship functioning, making it difficult to detect any intervention-related gains.
The study also flagged a potential mismatch between intervention content and the specific needs of couples affected by prostate cancer. For example, while some programmes attempted to improve communication and coping strategies, they often failed to address sensitive issues like sexual dysfunction, which can be a source of strain in relationships. This omission may limit the effectiveness of the interventions.
While online and remote delivery of psychological support has become more common, especially since the pandemic, the review found no significant differences between face-to-face and remote formats in terms of impact. However, researchers note that online programmes may still offer logistical advantages that could make them more accessible for some couples.
The authors of the review call for future research to develop more targeted and methodologically robust interventions. They recommend that studies focus on participants with lower baseline relationship satisfaction and ensure that outcome measures are capable of capturing subtle but meaningful improvements in relational dynamics.
