Under construction – not a live service
Sign in
Taking people in VietnamNo phase

Validation and Reliability of the Vietnamese Pain Self-Efficacy Questionnaire in Knee Osteoarthritis

Key facts

Who runs it
Khai Quang Nguyen, MD
Where
Ho Chi Minh City, VietnamSee the site
Trial code
Status
Recruiting
People taking part
173 people, planned
Started
14 Jul 2025
Planned end
31 Dec 2025
Type of study
Observational
Treatments tested
  • Completion of Vietnamese Pain Self-Efficacy Questionnaire (PSEQ)
Record updated
19 August 2025

Who can take part

Age
50 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 15 criteriaShow less

Who can take part

  • Participants will be eligible for inclusion if they meet all of the following conditions:
  • Age ≥ 50 years
  • Diagnosis of knee osteoarthritis (OA) according to the criteria of the American College of Rheumatology (ACR), confirmed by:; application of ACR criteria by the investigator at the time of enrollment; or; a prior diagnosis documented in medical records by a rheumatologist or musculoskeletal specialist
  • Presence of chronic pain related to knee OA, with current pain intensity ≥ 1 on the Visual Analog Scale (VAS)
  • No acute flare of knee pain within the past 2 weeks
  • Ability to perform activities of daily living (with or without assistance)
  • Ability to read, understand, and complete questionnaires in Vietnamese
  • Willingness to participate and provide informed consent

Who cannot take part

  • Participants will be excluded if they meet any of the following conditions:
  • Diagnosis of severe psychiatric disorders (e.g., schizophrenia, severe anxiety disorders)
  • Presence of cognitive impairment that interferes with the ability to comprehend or answer the questionnaire
  • Diagnosed with systemic inflammatory diseases such as rheumatoid arthritis, systemic lupus erythematosus, or gout
  • Presence of other chronic pain conditions (unrelated to knee OA) that are predominant and significantly affect mobility and daily functioning
  • History of intra-articular injection or knee surgery within the past 3 months
  • Questionnaire (PSEQ) with ≥ 20% of items missing or invalid

Where in Vietnam

  • Gia Dinh People's HospitalHo Chi Minh City, VietnamContact: Hai H Nguyen, MD, PhDTaking people

About the trial

What the trial wants to find out

This study aims to evaluate the reliability and convergent validity of the Vietnamese version of the Pain Self-Efficacy Questionnaire (VIET-PSEQ) in patients with knee osteoarthritis (KOA). Pain self-efficacy refers to a person's confidence in managing their pain and maintaining daily activities despite it.

Read full original descriptionShow less

A total of 173 patients with KOA will be recruited at Gia Dinh People's Hospital using a convenient sampling method. Eligible participants are 50 years or older, diagnosed with KOA, and experiencing chronic knee pain. They will complete the VIET-PSEQ and other health-related questionnaires during an in-person interview.

The study will assess internal consistency (using Cronbach's alpha), test-retest reliability (by re-assessing a subgroup after 72 hours), and convergent validity by correlating VIET-PSEQ scores with EQ-5D-5L utility index. Additionally, linear regression analysis will examine how age, sex, pain severity, and education level influence pain self-efficacy.

The goal is to determine whether VIET-PSEQ is a reliable and valid tool for measuring pain self-efficacy in Vietnamese patients with KOA.

The group in the trial

  • Patients with Knee Osteoarthritis

    A single group of patients aged 50+ with clinically diagnosed knee osteoarthritis attending Gia Dinh People's Hospital for outpatient evaluation. Participants will complete the Vietnamese Pain Self-Efficacy Questionnaire (VIET-PSEQ) to assess its psychometric properties.

    Treatment: Completion of Vietnamese Pain Self-Efficacy Questionnaire (PSEQ)

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Validation and Reliability of the Vietnamese Version of the Pain Self-Efficacy Questionnaire in Patients With Knee Osteoarthritis
Record updated
19 August 2025