Trajectories of sleep quality during the first three years after breast cancer diagnosis

Sleep Medicine
Filipa FontesNuno Lunet

Abstract

To identify trajectories of sleep quality up to three years after breast cancer diagnosis and to assess differences in characteristics of patients across distinct trajectories. A total of 458 breast cancer patients underwent a neurological evaluation before treatment and at one and three years after diagnosis. Clinical data were obtained throughout the follow-up. Anxiety and depression were evaluated at baseline, using the Hospital Anxiety and Depression Scale. In all sessions of follow-up, sleep quality was assessed using the Pittsburgh Sleep Quality Index. Model-based clustering was used to identify groups of patients with homogeneous variation in sleep quality. We identified three trajectories of variation in sleep quality, named "low" (LSQ), "medium" (MSQ), and "high sleep quality" (HSQ). Women in the HSQ trajectory presented good sleep quality during the three years. LSQ and MSQ trajectories were characterized by poor sleep quality during the whole period, although during the first year the latter depicted a significant deterioration of sleep quality and the former a significant improvement. Patients included in the LSQ trajectory were more likely to have clinically significant anxiety and depression at baseline. The two t...Continue Reading

Citations

Apr 24, 2018·Oncology Nursing Forum·Janine OvercashAnne M Noonan
Aug 17, 2018·Supportive Care in Cancer : Official Journal of the Multinational Association of Supportive Care in Cancer·Ann M BergerKenneth H Cowan
Oct 3, 2018·European Journal of Cancer Prevention : the Official Journal of the European Cancer Prevention Organisation (ECP)·Ana BarbosaNuno Lunet
Jun 24, 2020·Journal of Clinical Medicine·Marion VouteGisèle Pickering
Jan 21, 2021·Behavioral Sleep Medicine·Helena R BeanJoshua F Wiley
Sep 25, 2019·Current Problems in Cancer·Feten Fekih-RomdhaneMajda Cheour
Jun 8, 2021·Current Opinion in Endocrine and Metabolic Research·Kathleen Van DykJudith E Carroll
Oct 2, 2020·Cancer Nursing·Min Kyeong JangCarol Estwing Ferrans

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