Meta-Analysis Data on Probiotic Effects for Adult Sleep Quality

13 randomized controlled trials with 890 participants form the basis of this meta-analysis. The data evaluates probiotic intervention efficacy on sleep quality using Pittsburgh Sleep Quality Index and Insomnia Severity Index scores. Results show a statistically significant improvement in PSQI and ISI scores, with no significant change in Epworth Sleepiness Scale scores or serum cortisol levels.

Use Cases

• Analyze the mean difference in Pittsburgh Sleep Quality Index scores between probiotic and control groups across 13 studies.
• Investigate heterogeneity (I²) metrics for PSQI and Insomnia Severity Index outcomes to assess study consistency.
• Compare effect sizes and confidence intervals for Insomnia Severity Index versus Epworth Sleepiness Scale results.
• Exclude studies based on risk-of-bias assessments extracted from the included randomized controlled trials.

Strengths

• Data synthesized from 13 distinct randomized controlled trials, providing a multi-study evidence base.
• Includes quantitative results for 890 participants across the pooled studies.
• Reports specific statistical outputs like mean differences, confidence intervals, p-values, and I² heterogeneity scores.

Limitations

• Sample size is limited to 890 total participants from the included trials.
• The dataset is static, representing a snapshot of studies published before December 2025.
• No raw participant-level data is provided; only aggregated study-level meta-analysis results.

Provenance

Source

Systematic review and meta-analysis conducted by Tingjing Ren, registered in PROSPERO (CRD420251237016).

Collection Method

Data extracted from 13 randomized controlled trials identified by searching eight public databases.

Time Range

Studies published before December 2025.

Freshness

Last updated March 2026, based on a search for studies published before December 2025.

Geography

null