Evidence map›Paper›PMID 29055062›Full record

ArticlePsycho-oncology2018

Cognition, quality-of-life, and symptom clusters in breast cancer: Using Bayesian networks to elucidate complex relationships.

Selene Xu, Wesley Thompson, Sonia Ancoli-Israel, Lianqi Liu, Barton Palmer, Loki Natarajan

Abstract read
In one paragraph

Article in Psycho-oncology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 5 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  4. Effect of cancer treatment on sleep quality in cancer patients: A systematic review and meta-analysis of Pittsburgh Sleep Quality Index.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2022
    Pooled it
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  18. Sleep dysfunction associated with worse chemotherapy-induced peripheral neurotoxicity functional outcomes.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Selene XuDepartment of Mathematics, University of California, San Diego, CA, USA.
Wesley ThompsonDepartment of Psychiatry, University of California, San Diego, CA, USA.
Sonia Ancoli-IsraelDepartment of Psychiatry, University of California, San Diego, CA, USA.
Lianqi LiuDepartment of Psychiatry, University of California, San Diego, CA, USA.
Barton PalmerDepartment of Psychiatry, University of California, San Diego, CA, USA.
Loki NatarajanVeterans Affairs, San Diego Health Care System, San Diego, CA, USA.ORCID 0000-0001-5719-828X

Funding

VIRAL MALIGNANCYP30CA023100 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DIANE M SIMEONE · 1985 to 2026
$124.9M
SAN DIEGO CLINICAL AND TRANSLATIONAL RESEARCH INSTITUTEUL1RR031980 · NCRR · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FIRESTEIN, GARY S · 2010 to 2011
$14.0M
Contributions of sleep/rhythms/fatigue to chemobrainR01CA112035 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ANCOLI-ISRAEL, SONIA · 2005 to 2009
$1.8M
Genomic, clinical and behavioral signature of long-term breast cancer survivalR01CA166293 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MESSER, KAREN, NATARAJAN, LOKI · 2013 to 2016
$1.6M
NCI NIH HHS P30 CA023100NCI NIH HHS R01 CA112035NCI NIH HHS R01 CA166293NCRR NIH HHS UL1 RR031980
6 · The paper itself

Abstract

objectiveBreast cancer patients frequently complain of cognitive dysfunction during chemotherapy. Patients also report experiencing a cluster of sleep problems, fatigue, and depressive symptoms during chemotherapy. We aimed to understand the complex dynamic interrelationships of depression, fatigue, and sleep to ultimately elucidate their role in cognitive performance and quality of life amongst breast cancer survivors undergoing chemotherapy treatment.

methodsOur study sample comprised 74 newly diagnosed stage I to III breast cancer patients scheduled to receive chemotherapy. An objective neuropsychological test battery and self-reported fatigue, mood, sleep quality, and quality of life were collected at 3 time points: before the start of chemotherapy (baseline: BL), at the end of cycle 4 chemotherapy (C4), and 1 year after the start of chemotherapy (Y1). We applied novel Bayesian network methods to investigate the role of sleep/fatigue/mood on cognition and quality of life prior to, during, and after chemotherapy.

resultsThe fitted network exhibited strong direct and indirect links between symptoms, cognitive performance, and quality of life. The only symptom directly linked to cognitive performance was C4 sleep quality; at C4, fatigue was directly linked to sleep and thus indirectly influenced cognitive performance. Mood strongly influenced concurrent quality of life at C4 and Y1. Regression estimates indicated that worse sleep quality, fatigue, and mood were negatively associated with cognitive performance or quality of life.

conclusionsThe Bayesian network identified local structure (eg, fatigue-mood-QoL or sleep-cognition) and possible intervention targets (eg, a sleep intervention to reduce cognitive complaints during chemotherapy).

Indexed as

AdultBayes TheoremBreast NeoplasmsCancer SurvivorsCognitive DysfunctionDepressionFatigueFemaleHumansMiddle AgedQuality of LifeSleep Wake DisordersBayesian networkbreast cancercognitive performancefatiguemoodoncologyquality of lifesleep

Identifiers

PMID29055062
PMCPMC5840020

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.