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Analysis of Factors Influencing Elevated Unconjugated Bilirubin in a Health Check-up Cohort Study

Analysis of Factors Influencing Elevated Unconjugated Bilirubin in a Health Check-up Cohort Study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500095279
Enrollment
Unknown
Registered
2025-01-04
Start date
2025-02-01
Completion date
Unknown
Last updated
2025-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

subclinical jaundice

Interventions

Subclinical Jaundice Group:no
Healthy Control Group:no

Sponsors

The Second Affiliated Hospital of Baotou Medical College
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria for subclinical jaundice are as follows: Serum bilirubin levels must be between 1 to 3 times the upper limit of the normal reference range, specifically total bilirubin between 17.1 to 51.3 umol/L, conjugated bilirubin between 3.42 to 10.26 umol/L, and unconjugated bilirubin between 13.68 to 41.04 umol/L. Participants should not have received any specific treatment within the three months leading up to the study. Except for bilirubin, lipids, and blood sugar indicators, all other liver and kidney function tests and routine blood tests must yield results within the normal range. Participants must be capable of understanding the study's objectives and procedures, be able to complete questionnaires and assessments of physiological and psychological health, and willingly sign an informed consent form. For the healthy control group, the criteria include: Age between 18 to 70 years old, with no gender restrictions. Bilirubin, lipids, blood sugar, and other liver and kidney function tests, as well as routine blood tests, must all fall within the normal range. Abdominal ultrasound results should be normal, with no evidence of fatty liver, cirrhosis, or other organic pathological changes. Participants should have no diagnosed clinical or chronic diseases such as hypertension, diabetes, coronary heart disease, etc.

Exclusion criteria

Exclusion criteria: Exclusion criteria for the subclinical jaundice group include all diseases that can cause abnormal bilirubin levels and any confirmed hepatobiliary system or other organic diseases, such as obstructive diseases (e.g., cholecystitis, post-cholecystectomy, gallbladder stones, bile duct stones), hepatocellular diseases (e.g., drug-induced liver injury, viral hepatitis, alcoholic liver disease), hemolytic diseases (e.g., hemolytic anemia), and other known organic diseases (e.g., congenital genetic diseases, malignant tumors). Additionally, abdominal ultrasound results must not indicate liver echo coarseness or cirrhosis.

Design outcomes

Primary

MeasureTime frame
Unconjugated bilirubin;conjugated bilirubin;total bilirubin;Self-Rating Anxiety Scale;SATEDscale;

Secondary

MeasureTime frame
blood lipids;Blood glucose;blood pressure;fatty liver;Helicobacter pylori infection;alcohol consumption;pickled foods;irregular diet;leftover food;

Countries

China

Contacts

Public ContactNian Yuanyuan

The Second Affiliated Hospital of Baotou Medical College, Department of Gastroenterology

nianyuanyuannina@163.com+86 131 4241 4358

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026