Background: The aim of this study was to evaluate the adherence, interrater agreement, and content of a guideline-based semistructured interview for adjustment disorder (AD) in patients with cancer. Methods: In total, 120 AD interviews with patients with cancer were performed by 9 trained psychologists. The interview contained topics related to stressors, resilience, and symptoms and complaints. Audiotaped interviews of 72 patients were available. Adherence to the interview manual was scored by two researchers independently, and the average adherence was calculated per topic. Interrater agreement was calculated using Cohen's Kappa. The content of the interviews was evaluated using thematic analysis of the transcribed interviews of patients with an AD diagnosis. Results: In the interviews, 97% of the topics were covered at least briefly and 78% of all topics were addressed at least adequately. Interviewers asked questions regarding stressors and symptoms and complaints more thoroughly compared with resilience. The interrater agreement regarding the AD diagnosis was moderate (Kappa 0.55). The content analysis showed that stressors and resilience can be additionally specified into physical, psychological, spiritual, and social themes, which are relevant to explore in the context of an AD diagnosis after cancer. Conclusion: The guideline-based interview for AD identifies problems and protective factors with adequate adherence and moderate agreement. A balanced investigation of stressors, resilience, and symptoms is important for optimal clinical decision-making regarding AD in the context of cancer.

Background: To investigate associations between psychological problems and the use of healthcare and informal care and total costs among head and neck cancer (HNC) patients. Method: Data were used of the NETherlands QUality of Life and Biomedical Cohort study. Anxiety and depression disorder (diagnostic interview), distress, symptoms of anxiety and depression (HADS), and fear of cancer recurrence (FCR) and cancer worry scale (CWS) were measured at baseline and at 12-month follow-up. Care use and costs (questionnaire) were measured at baseline, 3-, 6-, 12-, and 24-month follow-up. Associations between psychological problems and care use/costs were investigated using logistic and multiple regression analyses. Results: Data of 558 patients were used. Distress, symptoms of anxiety or depression, FCR, and/or anxiety disorder at baseline were significantly associated with higher use of primary care, supportive care, and/or informal care (odds ratios (ORs) between 1.55 and 4.76). Symptoms of anxiety, FCR, and/or depression disorder at 12-month follow-up were significantly associated with use of primary care, supportive care, and/or informal care (ORs between 1.74 and 6.42). Distress, symptoms of anxiety, and FCR at baseline were associated with higher total costs. Discussion: HNC patients with psychological problems make more use of healthcare and informal care and have higher costs. This is not the result of worse clinical outcomes.

Objective This study systematically reviewed the association of psychological problems among cancer patients with healthcare and societal resource use and costs. Methods PubMed, PsycINFO, and Embase were searched (until 31 January 2021) for studies on psychological symptoms (anxiety, depression, distress, fear of recurrence) or psychiatric disorders (anxiety, depression, adjustment) and healthcare use (e.g., mental, inpatient healthcare), economic losses by patients and family, economic losses in other sectors (e.g., absence from work), and costs. The search, data extraction, and quality assessment were performed by two authors. Results Of the 4157 identified records, 49 articles were included (psychological symptoms (n = 34), psychiatric disorders (n = 14), both (n = 1)) which focused on healthcare use (n = 36), economic losses by patients and family (n = 5), economic losses in other sectors (n = 8) and/or costs (n = 13). In total, for 12 of the 94 associations strong evidence was found. Psychological symptoms and psychiatric disorders were positively associated with increased healthcare use (mental, primary, inpatient, outpatient healthcare), losses in other sectors (absence from work), and costs (inpatient, outpatient, total healthcare costs). Moderate evidence was found for a positive association between (any) psychiatric disorder and depression disorder with inpatient healthcare and medication use, respectively. Conclusions Psychological problems in cancer patients are associated with increased healthcare use, healthcare costs and economic losses. Further research is needed on psychological problems in relation to understudied healthcare use or costs categories, productivity losses, and informal care costs.

Background Information on the prevalence of adjustment disorders among cancer patients and the value of psychological interventions in this group of patients is limited. This study investigates the prevalence of adjustment disorders among cancer patients as well as the reach, effectiveness, cost-utility and budget impact of a tailored psychological intervention. Method This study consists of two parts. Part 1 is an observational study among a representative group of mixed cancer patients after cancer treatment on the prevalence of adjustment disorder as well as the uptake (i.e. reach) of psychological treatment. In Part 2, patients diagnosed with an adjustment disorder are invited to participate in a randomized controlled trial. Patients will be randomized to the intervention (access to the tailored psychological intervention) or control group (waitlist period of 6 months). The psychological intervention consists of three modules: one module containing psycho-education (3 sessions, all patients) and two additional modules (maximum of 6 sessions per module) provided as continuum, in case needed. Module 2 and 3 can consist of several evidence-based interventions (e.g. group interventions, mindfulness, eHealth) The primary outcome is psychological distress (HADS). Secondary outcomes are mental adjustment to cancer (MAC) and health-related quality of life (EORTC QLQ-C30). To assess the cost-utility and budget impact, quality of life (EQ-5D-5 L) and costs (iMCQ and iPCQ) will be measured. Measures will be completed at baseline and 3 and 6-months after randomization. Discussion This study will provide data of the prevalence of adjustment disorders and the reach, effectiveness, cost-utility and budget impact of a tailored psychological intervention. Trial registration Netherlands Trial Register identifier: NL7763 . Registered on 3 June 2019.