Factors associated with poor sleep quality in women with cancer.
Thalyta Cristina Mansano-Schlosser, Maria Filomena Ceolim
PMID 28301036WHAT IT FOUND
Depression and pain before surgery predicted worse sleep quality throughout breast cancer treatment.
Higher hope scores predicted better sleep. Poor sleep persisted in over half the women at every follow-up point.
Key findings
01Depression and pain prior to surgery were associated with worse sleep quality scores throughout the follow-up period.
02Higher scores on the Herth Hope Scale were associated with reduced sleep disturbance scores.
03Poor sleep quality persisted in the majority of participants at all four assessment points, ranging from 55.9% to 61.8%.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
Loss to follow-up reduced the sample from 156 to 102, partly due to incomplete medical records, which limits generalizability. The study identified associations, not causal relationships, between depression, pain, hope, and sleep quality. The sample was drawn from a single specialized center in Brazil, which may limit applicability to other populations.
Declared interests
The study was supported by CAPES and CNPq, Brazilian government funding agencies. No commercial conflicts of interest were reported.
The easy way to misread this
Do not interpret the association between hope and sleep quality as evidence that hope interventions directly improve sleep. The study is observational and measures hope as a trait or state, not as a therapeutic outcome of an intervention.