Irritable Bowel Syndrome Prevalence Meta-Analysis for China

65 studies involving 197,764 participants and 23,341 IBS cases were synthesized. This meta-analysis provides pooled prevalence estimates for China, stratified by sex, age group, and IBS subtype. The work was conducted by Di Tian and published in 2026.

Use Cases

• Analyze pooled IBS prevalence of 11.0% and its 95% confidence interval across Chinese provinces.
• Compare sex-stratified prevalence estimates of 9.0% for men and 11.1% for women.
• Examine age-stratified prevalence, including the 12.0% rate for adults aged 18–59 years.
• Investigate subtype prevalence across IBS-C (3.9%), IBS-D (4.3%), IBS-M (3.0%), and IBS-U (2.7%).
• Assess geographic coverage, noting data concentration in Beijing, Shanghai, and Hubei and absence in regions like Hunan.

Strengths

• Synthesizes data from 65 studies with a total sample of 197,764 participants.
• Provides detailed subgroup analyses by sex, age, and IBS subtype with specific prevalence percentages.
• Covers observational studies from both Chinese and international databases up to August 2025.

Limitations

• Substantial heterogeneity in prevalence estimates (I² = 99.4%).
• Geographic coverage is incomplete, with no data for several provinces including Hunan and Xinjiang.
• The dataset is a 727.0 KB DOCX file containing a review article, not a structured data table for direct analysis.

Provenance

Source

figshare, authored by Di Tian.

Collection Method

Systematic review and meta-analysis of observational studies from Chinese and international databases.

Time Range

Studies from inception to August 2025.

Freshness

Last updated in March 2026, based on a search up to August 2025.

Geography

China, covering 23 provinces.