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. 2022 Nov;30(11):9243-9254.
doi: 10.1007/s00520-022-07350-6. Epub 2022 Sep 6.

Distinct sleep disturbance and cognitive dysfunction profiles in oncology outpatients receiving chemotherapy

Vivian Huang  1 , Lynda Mackin  1 , Kord M Kober  1 , Steven M Paul  1 , Bruce A Cooper  1 , Yvette P Conley  2 , Marilyn J Hammer  3 , Jon D Levine  4 , Christine Miaskowski  5   6
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Free article

Distinct sleep disturbance and cognitive dysfunction profiles in oncology outpatients receiving chemotherapy

Vivian Huang et al. Support Care Cancer. 2022 Nov.
Free article

Abstract

Purpose: Sleep disturbance and cancer-related cognitive impairment (CRCI) are two of the most common symptoms reported by patients undergoing chemotherapy. Less is known about how these symptoms co-occur and their associated risk factors. Study purposes were to identify subgroups of patients with distinct sleep disturbance and CRCI profiles and evaluate for differences among the subgroups in demographic and clinical characteristics, symptom severity scores, and QOL outcomes.

Methods: A total of 1,333 oncology outpatients receiving chemotherapy completed self-report questionnaires on sleep disturbance and cognitive dysfunction six times over two cycles of chemotherapy. Latent profile analysis was used to identify distinct sleep disturbance AND cognitive dysfunction profiles. Parametric and non-parametric tests were used to evaluate for differences among the classes.

Results: Two distinct profiles were identified (i.e., Low = low levels of both sleep disturbance and cognitive dysfunction (53.5%); High = high levels of both sleep disturbance and cognitive dysfunction (45.5%)). Patients in the High class were younger, more likely to be female, had a lower functional status and a higher level of comorbidity. In addition, these patients had a higher symptom burden and a lower quality of life.

Conclusion: Almost half of the patients undergoing chemotherapy experienced clinically meaningful levels of both symptoms. Of note, sleep disturbance is frequently overlooked by both clinicians and patients. Clinicians need to recommend cognitive rehabilitation and physical activity programs to decrease patients' symptom burden.

Keywords: Cancer; Chemotherapy; Cognitive impairment; Depression; Fatigue; Insomnia; Pain; Quality of life; Sleep disturbance.

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