Acceptance and commitment therapy processes and their association with distress in cancer: a systematic review and meta-analysis

Around 42% of individuals with cancer experience distress. Acceptance and commitment therapy (ACT) can reduce distress, but effects are small, and mechanisms unclear. This review aimed to identify associations between ACT processes and distress in cancer. Search terms included cancer, ACT processes, self-compassion, and distress. Six online databases and grey literature were searched until March 2022. Of 6555 papers screened, 108 studies were included with 17,195 participants. Five meta-analyses of 77 studies were conducted. Random effects meta-analyses of correlations revealed higher scores on flexible processes (acceptance, present moment awareness, self-compassion) were associated with lower distress (rpooled = -0.24, -0.39, -0.48, respectively); whilst higher scores on inflexible processes (experiential avoidance, cognitive fusion) were associated with higher distress (rpooled = 0.58, 0.57, respectively). Meta-analyses displayed moderate-to-high heterogeneity with most studies assessed as low risk of bias. Meta-regressions revealed no significant moderators (stage, time since diagnosis, gender and age). This review provides a theoretically aligned evidence base for associations between ACT processes and distress in cancer, supporting elements of ACT theory and providing targeted directions for intervention development. Due to limited evidence, future research should focus on self-as-context, values and committed action and conduct mediation analysis in controlled trials of ACT processes on distress in cancer.

Psychometric validation of the 15-item Patient Health Questionnaire - Anxiety and Depression Scale (PHQ-ADS) to assess psychological distress in breast cancer survivors

OBJECTIVE

Psychological distress persists amongst breast cancer survivors, so reliable assessment of symptoms is essential. The Patient Health Questionnaire Anxiety and Depression Scale (PHQ-ADS) is a composite measure of depression and anxiety and has been used to measure distress. This study aimed to evaluate the psychometric properties of the PHQ-ADS within breast cancer survivors.

METHOD

Breast cancer survivors (N = 280) were recruited online and followed up at 12-months. Depression (PHQ-8) and anxiety (GAD-7) items formed the composite PHQ-ADS score. Additional measures included: distress thermometer (convergent validity), fear of cancer recurrence and COVID distress (discriminant validity), and self-compassion (predictive validity). Confirmatory factor analysis (CFA) using weighted least squares mean and variance adjusted estimation was undertaken.

RESULTS

One, two, and bifactor models underlying the PHQ-ADS were evaluated. The bifactor model had the most appropriate model fit overall. Omega hierarchical for the general distress factor was 0.914, accounting for 82% of explained variance. This suggests the PHQ-ADS is sufficiently unidimensional to warrant use of a total composite score. The PHQ-ADS demonstrated strong convergent and moderate discriminant validity. Self-compassion was an independent predictor of distress at 12-months.

CONCLUSIONS

The PHQ-ADS is a valid measure for psychological distress in breast cancer survivors prescribed hormone therapy.

Mindfulness-Based Interventions in Recurrent Ovarian Cancer: A Mixed-Methods Feasibility Study

A recurrence of cancer is a traumatic and stressful experience, and a number of approaches have been proposed to manage or treat the associated psychological distress. Meditative techniques such as mindfulness may be able to improve an individual’s ability to cope with stressful life events such as cancer diagnosis or treatment. This single-arm mixed-methods study primarily aimed to determine the feasibility of using a mindfulness-based intervention in managing psychosocial distress in recurrent ovarian cancer. Twenty-eight participants took part in a mindfulness-based program, involving six group sessions, each lasting 1.5 hours and delivered at weekly intervals. The study found that the mindfulness-based intervention was acceptable to women with recurrent ovarian cancer and feasible to deliver within a standard cancer care pathway in a UK hospital setting. The results suggested a positive impact on symptoms of depression and anxiety, but further study is needed to explore the effectiveness of the intervention.

Emotional distress and psychosocial needs in patients with breast cancer in British Columbia: younger versus older adults

PURPOSE

This study evaluates the prevalence of emotional distress and psychosocial needs in young adult (YA, age 18-39) patients at the time of their breast cancer diagnosis compared to older patients.

METHODS

Through a province-wide program, BC Cancer patients complete the PsychoSocial Scan for CANcer-Revised (PSSCAN-R) questionnaire, which screens for the presence of symptoms of anxiety and depression and assesses psychosocial needs using the Canadian Problem Checklist (CPC). The study population comprised all breast cancer patients who completed the questionnaire within 6 months of their cancer diagnosis between 2011 and 2016. Clinical information was retrospectively collected from electronic health records. Univariate and multivariate analyses using the X2, Fisher's exact test, and logistical regression were used to compare patient age groups.

RESULTS

The cohort included 10,734 breast cancer patients: median age 62, 4% YA, 99% female, and 96% presented with non-metastatic disease. After adjusting for clinical and demographic variables, YA patients were more likely to report depression (33.6% vs. 25.5%, OR 1.47, p = 0.001) and anxiety symptoms (58.6% vs. 35.7%, OR 2.49, p < 0.001) than older patients. Psychosocial needs regarding work/school (OR 3.79, p < 0.001), intimacy/sexuality (OR 2.82, p < 0.001), and finances (OR 2.78, p < 0.001) were more common among YA than older adults.

CONCLUSIONS

After a breast cancer diagnosis, YAs have higher levels of emotional distress compared to older patients. Differences in specific psychosocial needs likely reflect differences in life stage between these age groups. The data suggest that YAs warrant specific attention with respect to early psychosocial assessment and tailored intervention.

Integrated Behavioral Medicine in Cancer Care: Utilizing a Training Program Model to Provide Psychological Services in an Urban Cancer Center

Psycho-oncology has come of age as its own unique subspecialty under the umbrella of oncology, vastly refining our knowledge regarding the psychosocial impact of cancer and fostering acceptance of the psychological underpinnings of the cancer experience, in turn improving the overall quality of cancer care. The importance of integrating psychological practice into the comprehensive treatment of cancer has become readily apparent, and psychosocial support services are increasing in quantity and breadth. It is the aim of this article to present a cogent argument for the proliferation of Integrated Behavioral Medicine (IBM) programs in both inpatient and outpatient clinical cancer treatment centers via an in-depth discussion of a successful IBM program including analysis of program structure, service delivery model and description of clinical services provided, and a longitudinal review of referral trends.

Risk factors for continuous distress over a 12-month period in newly diagnosed cancer outpatients

This analysis examined demographic and medical factors associated with continuous distress in the year following cancer diagnosis. Patients completed the Distress Thermometer, Fatigue and Pain Thermometers, and anxiety and depression measures, at baseline, 3-, 6-, and 12 months. A total of 480 patients were grouped into three trajectories for distress, pain, fatigue, anxiety, and depression. Logistic regression analyses were conducted to determine risk factors associated with each symptom pattern. Females were more likely to report continuous distress. Predictors of the remaining outcomes included younger age; a diagnosis of head and neck, gastrointestinal, or prostate cancer; and receipt of chemotherapy and radiation therapy. By identifying risk factors for continuous distress, interventions can be implemented more efficiently and targeted to those who are at an elevated risk.