Sleep disorders and their relationship to other psychiatric disorders in women with breast cancer: a case-control study

Dreaming in patients with cancer and their partners-an underestimated factor for quality of life?

Sleep disorders are prevalent among patients with cancer and their caregivers as well, affecting their quality of life. But the relationship between sleep quality, dream experiences, and life satisfaction in patients with cancer and their partners is understudied. The present research aimed to quantitatively investigate the dream experiences of oncology patients and explore the interdependence between patients and their partners in terms of dream experiences and life satisfaction. Therefore, a cross-sectional study was conducted with 101 dyads, completing a questionnaire assessing demographic and illness-related data, dream experiences, sleep quality, and life satisfaction. Inferential statistical tests and actor-partner interdependence models were used to analyse the data. Both patients with cancer and their partners reported on average a significant decrease in sleep quality since the cancer diagnosis and for both dyad members significant dreaming predictors for life satisfaction were found. Namely, a positive association for dream stability in patients, and a positive association for positive dream affect as well as a negative association for negative dream affect in partners. Regarding the question of interdependence, dream intensity exhibited a significant group-specific partner effect, but no overall partner effect, leading to inconclusive results that call for more studies in this field. The study suggests that dreaming may affect life satisfaction beyond sleep quality and underscores the significance of acknowledging dream experiences as potential influencers of quality of life in patients with cancer. Additionally, the study stands out for its examination of the role of partners in dyadic dependency, emphasising the importance of understanding their influence on patients' experiences.

Oncology Outpatients With Worse Anxiety and Sleep Disturbance Profiles Are at Increased Risk for a Higher Symptom Burden and Poorer Quality of Life

BACKGROUND

Anxiety and sleep disturbance are frequent symptoms during chemotherapy.

OBJECTIVES

Purposes were to identify subgroups of oncology outpatients with distinct joint anxiety and sleep disturbance profiles, as well as evaluate for differences in demographic and clinical characteristics, sleep disturbance characteristics, severity of common symptoms, and quality-of-life outcomes among these subgroups.

METHODS

Oncology outpatients (n = 1331) completed self-report measures of anxiety and sleep disturbance 6 times over 2 chemotherapy cycles. Latent profile analysis was done to identify subgroups of patients with distinct joint anxiety and sleep disturbance profiles.

RESULTS

Three profiles were identified (ie, no anxiety and low sleep disturbance (59.7%), moderate anxiety and high sleep disturbance (32.5%), high anxiety and very high sleep disturbance (7.8%)). Compared with the no anxiety and low sleep disturbance class, the other 2 classes were younger; less likely to be married; had a lower annual household income; and had childcare responsibilities. Patients in the 2 worse profiles had problems with both sleep initiation and maintenance. These patients reported higher levels of depressive symptoms, trait and state anxiety, and evening fatigue, as well as lower levels of morning and evening energy, cognitive function, and poorer quality of life.

CONCLUSIONS

More than 40% of patients had moderate or high levels of anxiety and high or very high levels of sleep disturbance. Modifiable risk factors associated with these profiles may be used to develop targeted interventions for 1 or both symptoms.

IMPLICATIONS FOR PRACTICE

Clinicians need to assess for the co-occurrence of anxiety and sleep disturbance.

Sleep Quality and Cancer-Related Fatigue in Patients with Cancer

Introduction: Sleep problems and fatigue are common symptoms reported by cancer patients. In this study, the researchers used a specialized tool to measure fatigue in cancer patients and its relationship with sleep quality in Yazd, Iran.

Methods: This descriptive correlational study included 149 cancer patients (age range: over 18 years) referred to Shahid Sadoughi Hospital in Yazd, Iran. Data were collected by the Pittsburgh Sleep Quality Index (PSQI) and Cancer-Related Fatigue Questionnaire. A PSQI score of ≥5 indicated a poor sleep. Data were analyzed using SPSS Statistics for Windows, version 13.0 (SPSS Inc., Chicago, IL, USA), Pearson’s correlation, t test, analysis of variance (ANOVA), and linear regression.

Results: The mean (SD) PSQI score of patients was 13 (4.85) out of 21. About 69.3% of patients had a poor sleep quality. While the mean (SD) of sleep duration was 5.57 (0.54) hours, it was 69.44 (46.58) minutes for sleep latency. Also, with increasing the mean of sleep quality, the mean of fatigue significantly increased (P < 0.001, R=0.63).

Conclusion: According to the results, there was a relationship between the sleep quality and fatigue in cancer patients, so that patients with better sleep quality had less fatigue.