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Factors associated with poor sleep quality in women with cancer1 1 Paper extracted from Doctoral Dissertation “Qualidade do sono e evolução clínica de mulheres com câncer de mama: estudo longitudinal”, presented to Faculdade de Enfermagem, Universidade Estadual de Campinas, Campinas , SP, Brazil. Supported by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), Brazil and by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil, process #249118/2013-0

ABSTRACT

Objectives:

to analyze the factors associated with poor sleep quality, its characteristics and components in women with breast cancer prior to surgery for removing the tumor and throughout the follow-up.

Method:

longitudinal study in a teaching hospital, with a sample of 102 women. The following were used: a questionnaire for sociodemographic and clinical characterization, the Pittsburgh Sleep Quality Index; the Beck Depression Inventory; and the Herth Hope Scale. Data collection covered from prior to the surgery for removal of the tumor (T0) to T1, on average 3.2 months; T2, on average 6.1 months; and T3, on average 12.4 months. Descriptive statistics and the Generalized Estimating Equations model were used.

Results:

depression and pain contributed to the increase in the score of the Pittsburgh Sleep Quality Index, and hope, to the reduction of the score - independently - throughout follow-up. Sleep disturbances were the component with the highest score throughout follow-up.

Conclusion:

the presence of depression and pain, prior to the surgery, contributed to the increase in the global score of the Pittsburgh Sleep Quality Index, which indicates worse quality of sleep throughout follow-up; greater hope, in its turn, influenced the reduction of the score of the Pittsburgh Sleep Quality Index.

Descriptors:
Sleep; Breast Neoplasms; Depression; Nursing; Hope; Longitudinal Studies

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