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Psychological correlates of sleep quality in lung cancer patients under chemotherapy: A single‐center cross‐sectional study
Author(s) -
Papadopoulos Dimitrios,
Kiagia Maria,
Charpidou Andriani,
Gkiozos Ioannis,
Syrigos Konstantinos
Publication year - 2019
Publication title -
psycho‐oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.41
H-Index - 137
eISSN - 1099-1611
pISSN - 1057-9249
DOI - 10.1002/pon.5167
Subject(s) - medicine , anxiety , lung cancer , sleep hygiene , cross sectional study , coping (psychology) , physical therapy , sleep disorder , performance status , cancer , clinical psychology , insomnia , psychiatry , sleep quality , pathology
Objectives Disturbed sleep is a common complaint of lung cancer patients undergoing active oncologic treatment. We aimed to clarify the extent to which psychological symptoms, coping strategies, and social support interfere with sleep quality and whether they mediate the relationship between sleep quality and fatigue or functional capacity in a sample of chemotherapy treated lung cancer patients. Methods Lung cancer patients attending an oncology unit for scheduled chemotherapy cycles completed questionnaires assessing their sleep quality, fatigue, depression, anxiety, stress, coping, social support, symptoms of pain, dyspnea, and cough, and sleep hygiene practices. Demographic and disease‐related characteristics were obtained from patients' medical records and treating physicians rated their functional status. Multivariate regression and mediation analyses were applied to test the study's hypotheses. Results One hundred nineteen patients were enrolled, 58.2% of whom were identified as poor sleepers. After adjusting for age, gender, comorbidities, concomitant medications, cancer stage, prior and ongoing treatment, sleep hygiene, and symptoms, there was a statistically significant association between poor sleep quality and anxiety (odd`s ratio [OR] 1.17 [95% CI, 1.01‐1.35]), stress (OR 1.14 [95% CI, 1.04‐1.25]), and positive coping (OR 1.15 [95% CI, 1.02‐1.31]). Poor sleep quality was an independent correlate of fatigue ( B 1.56 [95% CI, 0.61‐2.50]) and low performance status (OR 5.17 [95% CI, 1.60‐16.72]); stress symptoms partially mediated the relationship between sleep quality and fatigue ( P = .030). Conclusions Higher psychological burden predict sleep disturbances and contribute to increased fatigue in lung cancer patients undergoing chemotherapy. Effective psychoeducational interventions may benefit these populations.