Meta-Analysis of Sleep Quality and Cancer-Related Cognitive Impairment, 2,908 Participants

A meta-analysis by Zhenjuan Dang, published on figshare in March 2026, synthesizes evidence on the link between sleep and cognitive impairment in cancer patients. It aggregates results from 13 studies involving 2,908 participants. The analysis found a moderate negative correlation (r = -0.44) between poor sleep quality and more severe cancer-related cognitive impairment.

Use Cases

• Validate the association between sleep quality and cognitive impairment based on the reported correlation coefficient (r = -0.44).
• Inform the design of clinical studies on cancer-related cognitive impairment using the included 13-study sample.
• Support systematic review protocols using the documented search strategy across eight databases.
• Benchmark new findings against the pooled effect size (β = -0.28) from regression analyses.

Strengths

• Includes a clearly defined statistical result: a correlation coefficient of r = -0.44 with a 95% CI.
• Based on a systematic review of 4,037 retrieved articles, with quality assessment using standardized checklists.
• Reports results from 2,908 participants across 13 selected studies, providing a defined sample size.

Limitations

• The primary data file is a 73.8 KB DOC document, which is a very small text summary, not the underlying raw or tabular data.
• Row count and column-level documentation for any underlying data are unknown.
• The dataset's utility for direct ML/AI modeling is limited as it presents aggregated statistical results, not individual-level observations.

Provenance

Source

Zhenjuan Dang via figshare.

Collection Method

Systematic literature review and meta-analysis of studies from PubMed, Embase, Scopus, Web of Science, CNKI, CBM, Wanfang, and VIP up to July 2025.

Time Range

Literature search covered studies from database inception to July 2025.

Freshness

Last updated 2026-03-18 05:34:54.

Geography

Studies were sourced from international and Chinese databases, but specific geographic coverage of the underlying studies is not detailed.