Assessing the Reliability of Self-Reported Hepatitis B Vaccination Status in Outpatients: Evaluation of Individuals Born in France and Consulting at the CeGIDD in Saint-Denis.

NCT06998992 | Completed

• 1 other identifier: 0006_SMIT
• Study Type: observational
• Target: 200
• Locations: 1 country
• Sites: 1

Brief Summary

This study aims to find out whether people accurately know their hepatitis B vaccination status. It focuses on individuals born in France who visit a sexual health clinic (CeGIDD) in Saint-Denis. During the consultation, each person is asked whether they think they are vaccinated against hepatitis B. Then, a blood test is done to check if they really are. The goal is to see how often people's answers match their actual medical status. The study also looks at factors like age, gender, education level, and whether they have a regular doctor to understand who is more likely to be unsure or mistaken about their vaccination status. About 200 participants are expected to take part.

Conditions

Hepatitis B; Vaccination; Health Knowledge, Attitudes, Practice; Serologic Tests; Ambulatory Care; Public Health

Outcome Measures

Primary Outcomes (1)

• The percentage of patients who declared being vaccinated against hepatitis B and who are confirmed to be truly vaccinated by serology.

  July 2020 - October 2020

Eligibility Criteria

• Sex: all
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Participants will be adults born in France who attend the CeGIDD (sexual health clinic) at Delafontaine Hospital in Saint-Denis. These individuals are seeking care and require a hepatitis B serology test. The population includes people with diverse backgrounds in terms of age, sex, sexual orientation, and education level. Patients with a known history of past hepatitis B infection will be excluded. The study focuses on evaluating the reliability of their self-reported hepatitis B vaccination status compared to serological test results.

You may qualify if:

• Patients born in France.
• Consulting at the CeGIDD of Delafontaine Hospital in Saint-Denis.
• Requiring a hepatitis B serology test.

You may not qualify if:

• \- Patients with a history of past hepatitis B infection.

Sponsors & Collaborators

• Centre Hospitalier de Saint-Denis: lead

Study Sites (1)

France

Saint-Denis, France, France

Location

MeSH Terms

Conditions

Hepatitis B; Behavior

Condition Hierarchy (Ancestors)

Blood-Borne Infections; Communicable Diseases; Infections; Hepadnaviridae Infections; DNA Virus Infections; Virus Diseases; Hepatitis, Viral, Human; Hepatitis; Liver Diseases; Digestive System Diseases

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: May 22, 2025
• First Posted: May 31, 2025
• Study Start: July 1, 2020
• Primary Completion: October 1, 2020
• Study Completion: October 1, 2020
• Last Updated: May 31, 2025

Record last verified: 2025-05

Locations

FR (1)