Mindfulness Affects the Level of Psychological Distress in Patients With Lung Cancer via Illness Perception and Perceived Stress: A Cross-Sectional Survey Study

Development and validation of a web-based calculator for determining the risk of psychological distress based on machine learning algorithms: A cross-sectional study of 342 lung cancer patients

PURPOSE

Early and accurate identification of the risk of psychological distress allows for timely intervention and improved prognosis. Current methods for predicting psychological distress among lung cancer patients using readily available data are limited. This study aimed to develop a robust machine learning (ML) model for determining the risk of psychological distress among lung cancer patients.

METHODS

A cross-sectional study was designed to collect data from 342 lung cancer patients. Least Absolute Shrinkage and Selection Operator (LASSO) was used for feature selection. Model training and validation were conducted with bootstrap resampling method. Fivefold cross-validation evaluated and optimized the model with parameter tuning. Feature importance was assessed using SHapley additive exPlanations (SHAP) method.

RESULTS

The model identified seven independent risk factors of psychological distress: residence (β = 0.141), diagnosis duration (β = 0.055), TNM stage (β = 0.098), pain severity (β = 0.067), perceived stigma (β = 0.052), illness perception (β = 0.100), and coping style (β = 0.097). Among the eight ML algorithms evaluated, the extreme gradient boosting (XGBoost) algorithm demonstrated the highest performance with AUROC values of 0.988, 0.945, and 0.922 for the training, validation, and test sets, respectively. The model's results were further explained using SHAP, which revealed the importance and contribution of each risk factor to the overall distress risk. A web-based tool was developed based on this model to facilitate clinical use.

CONCLUSION

The XGBoost classifier demonstrated exceptional performance, and clinical implementation of the web-based risk calculator can serve as an easy-to-use tool for health practitioners to formulate early prevention and intervention strategies.

Associations of diagnostic awareness with psychosocial symptoms and survival time in patients with advanced lung cancer

OBJECTIVE

Disclosing the diagnosis of lung cancer to patients is an issue, especially in the Middle East where cultural factors may prohibit disclosure from being done. The psychosocial consequences of diagnostic awareness and its impact on life expectancy of disclosure are an important issue that may influence this decision. The present study evaluated the effects of diagnostic awareness on psychosocial symptomatology and survival time in advanced lung cancer patients in Turkey.

METHODS

This prospective cohort study included 126 advanced lung cancer patients admitted to the oncology department between February 2021 and August 2021. A face-to-face survey included questions on age, gender, marital/employment statuses, comorbidities, and psychological symptoms (SCL-90-R). Diagnostic awareness was assessed by asking patients whether they knew their diagnosis. The correlation of diagnostic awareness with 2-year survival time was analyzed using Cox regression analysis.

RESULTS

Of the 126 patients, 86 died at the time of follow-up. Survival time and scores on SCL-90-R symptom subscales were compared between diagnosis-aware (79.4%) and diagnosis-unaware groups (20.6%). Somatization (P = 0.04), depression (P = 0.01), hostility (P = 0.03), scores on additional symptom scales (P = 0.01), and Positive Symptom Total scores (P = 0.01) were significantly higher in the diagnosis-unaware group. No significant difference was found between diagnostic awareness and survival time (P = 0.24).

CONCLUSIONS

Advanced lung cancer patients aware of their diagnosis experienced less psychosocial burden. However, no significant difference was found in survival time between diagnosis-aware and diagnosis-unaware patients. These findings suggest that the diagnosis should be disclosed to lung cancer patients after confirmation of diagnosis.

Mediating Effects of Self-Efficacy and Illness Perceptions on Mental Health in Men with Localized Prostate Cancer: A Secondary Analysis of the Prostate Cancer Patient Empowerment Program (PC-PEP) Randomized Controlled Trial

Understanding how interventions reduce psychological distress in patients with prostate cancer is crucial for improving patient care. This study examined the roles of self-efficacy, illness perceptions, and heart rhythm coherence in mediating the effects of the Prostate Cancer Patient Empowerment Program (PC-PEP) on psychological distress compared to standard care. In a randomized controlled trial, 128 patients were assigned to either the PC-PEP intervention or standard care. The PC-PEP, a six-month program emphasizing daily healthy living habits, included relaxation and stress management, diet, exercise, pelvic floor muscle exercises, and strategies to improve relationships and intimacy, with daily activities supported by online resources and live sessions. Participants in the intervention group showed significant improvements in self-efficacy and specific illness perceptions, such as personal control and emotional response, compared to the control group. These factors mediated the relationship between the intervention and its psychological benefits, with self-efficacy accounting for 52% of the reduction in psychological distress. No significant differences in heart rhythm coherence were observed. This study highlights the critical role of self-efficacy and illness perceptions in enhancing psychological health in prostate cancer patients through the PC-PEP. The results underscore this program's effectiveness and the key mechanisms through which it operates. Given the high rates of distress among men undergoing prostate cancer treatments, these findings emphasize the importance of integrating the PC-PEP into clinical practice. The implementation of the PC-PEP in clinical settings can provide a structured approach to reducing psychological distress and improving overall patient well-being.

The effect of illness perception on psychosocial adjustment of patients with breast cancer and their spouses: actor-partner independence model

OBJECTIVE

With the increase in the prevalence rate and improvements in the survival of breast cancer patients, there is a growing interest in understanding the level of psychosocial adjustment in these patients. The study aimed to describe the illness perception and psychosocial adjustment levels of both breast cancer patients and their spouses, to use the Actor-Partner Interdependence Model (APIM) to clarify the actor-partner relationships between spouses, and to explore the impact of illness perception on psychosocial adjustment to the disease within the joint actions of both spouses.

METHODS

A total of 216 female patients with breast cancer and their spouses participated in the study. They were selected from two tertiary hospitals in Guangdong Province, China from October 2022 to May 2023 using a convenience sampling method. The participants were assessed using the Brief Illness Perception Questionnaire and the Psychosocial Adjustment to Illness Scale to examine the relationship between illness perception and psychosocial adjustment. AMOS24.0 was used to test and analyze the actor-partner interdependence model.

RESULTS

The illness perception score (57.75 ± 10.91) was slightly higher than that of the spouse (57.10 ± 11.00), and the psychosocial adjustment score (64.67 ± 6.33) was slightly lower than that of the spouse (64.76 ± 7.49). The results of the actor-partner interdependence model indicated that there was a couple partner between breast cancer patients and their spouses: the spouse's illness perception significantly affected the patient's psychosocial adjustment (β = 0.095, p = 0.015); the patient's illness perception also significantly affected the spouse's psychosocial adjustment (β = 0.106, p = 0.033). Among them, the patient's psychosocial adjustment was found to be related to the patient's illness comprehensibility or coherence of illness (β = 0.433, p = 0.009), the spouse's emotional illness representation (β = 0.218, p = 0.037), and the spouse's illness comprehensibility or coherence of illness (β = 0.416, p = 0.007), while the spouse's psychosocial adjustment was only related to the spouse's illness comprehensibility or coherence of illness (β = 0.528, p = 0.007).

CONCLUSIONS

The psychosocial adjustment of breast cancer patients is affected by both their own and spouse's illness perception. Therefore, in the future, the healthcare staff can implement early psychological interventions for patients diagnosed with breast cancer and their spouses as a unit to promote the psychosocial adjustment of them.

Treatment-induced menopause symptoms among women with breast cancer undergoing chemotherapy in China: a comparison to age- and menopause status-matched controls

OBJECTIVE

Whether women with breast cancer experience more severe menopause symptoms than comparison women without a history of breast cancer diagnosis remains unclear. We aimed to investigate whether women with breast cancer undergoing chemotherapy experience more severe menopause symptoms than comparison women and explore various factors influencing menopause symptoms in women with breast cancer undergoing chemotherapy.

METHODS

This cross-sectional observational study recruited 423 women with breast cancer undergoing chemotherapy and 1,829 community women without breast cancer. All participants completed a questionnaire assessing menopause symptoms using the Menopause Rating Scale and general characteristics (eg, sociodemographic and clinical data). Propensity score matching was used to reduce the confounders between the two groups. Student's t test or Mann-Whitney U test and chi-square tests were used to compare the differences in menopause symptoms between the two groups. Multivariate linear regression analysis was performed to explore various factors influencing menopause symptoms in women with breast cancer undergoing chemotherapy.

RESULTS

After propensity score matching, 808 participants were included. The mean ages of women with breast cancer undergoing chemotherapy and comparison women were 49.58 and 49.10 years, respectively. Women with breast cancer undergoing chemotherapy experienced significantly more severe vasomotor symptoms than comparison women. However, comparison women had higher Menopause Rating Scale scores and more severe menopause symptoms than women with breast cancer undergoing chemotherapy. Age, occupational status, chemotherapy-induced amenorrhea, family history of cancer, chemotherapy stage, mindfulness, resiliency, and illness perception were associated with menopause symptoms in women with breast cancer undergoing chemotherapy.

CONCLUSIONS

Vasomotor symptoms are prominent among women with breast cancer undergoing chemotherapy. Understanding the factors contributing to menopause symptoms is crucial for healthcare practitioners to develop supportive guidelines for the well-being of women with breast cancer undergoing chemotherapy.

Frailty, Illness Perception and Lung Functional Exercise Adherence in Lung Cancer Patients After Thoracoscopic Surgery

Background

Lung cancer patients will have lung damage after surgery, need rehabilitation exercise. Common-sense model has shown the impact of patients' perception of illness on health behaviors. However, for patients with lung cancer after thoracoscopic surgery, there has been no relevant exploration of disease perception.

Objective

The purpose of this study was to investigate the clinical status of patients with lung cancer patients who have undergone thoracoscopic surgery, and to explore the correlation between frailty, disease perception, and lung functional exercise compliance.

Methods

The cross-sectional study included 218 patients with lung cancer after thoracoscopic surgery. We collected participants' frailty, disease perception, exercise adherence, and relevant clinical information. T-test, Chi-square, Linear regression, Pearson's correlation, and mediation analysis were used for statistical analysis of patient data.

Results

We analyzed the data by disease perception with high and low median scores and found significant differences in lymphatic dissection, stool within three days, pain, thoracic drainage tube placement time. Linear regression results show that, after controlling for confounding factors, frailty and disease perception were significantly associated with pulmonary function exercise compliance. The higher the frailty score, the worse the compliance, and the higher the disease perception negative score, the less exercise. Illness perception played a partially mediating role in the association between frailty and lung functional exercise adherence.

Conclusion

Frailty and disease perception have an impact on exercise adherence, therefore, we need to consider these factors in the intervention to improve exercise compliance after thoracoscopic surgery for lung cancer.