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Chronic PainNCT07778381

National Survey of Chronic Occupational Pain in Thai Anesthesia Providers

An observational study of Chronic Pain and Musculoskeletal Pain, run by Mahidol University.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The purpose of this nationwide cross-sectional survey is to determine the prevalence, multidimensional impacts, and associated factors of chronic occupational pain among anesthesiologists and nurse anesthetists in Thailand. Read more about this study

Who is it for?
Ages 25 to 60 yearsHealthy volunteers can take part
How many people
1,800 participants
Where
No sites listed yet
Study dates
15 Aug 2026to 1 Jan 2027
How long will I take part?
1 Day
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 25 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: The study population consists of actively practicing anesthesia providers, specifically attending anesthesiologists, anesthesia residents, and nurse anesthetists, who are currently working in healthcare facilities across Thailand.

Who may be able to join

  • Currently practicing as an anesthesiologist, anesthesia resident, or nurse anesthetist in a hospital in Thailand.
  • Aged between 25 and 60 years.
  • Have been working in their current clinical position and performing anesthesia-related tasks for at least 6 months.

Who cannot join

  • Currently on extended leave (e.g., long-term sick leave, maternity leave, or study leave) during the survey period.
  • Unwilling or unable to provide informed consent to participate in the study.

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Endu Obomkul, M.D. contact

+66 834694072

ohmaiaikuku@gmail.com

Suratsawadee Wangnamthip, M.D.Assoc. Prof. contact

+66 819261509

suratsawadee.wan@mahidol.ac.th

About this study

Official title: Prevalence, Impacts, and Associated Factors of Chronic Occupational Pain Among Anesthesiologists and Nurses Anesthetists in Thailand: A National Survey

The purpose of this nationwide cross-sectional survey is to determine the prevalence, multidimensional impacts, and associated factors of chronic occupational pain among anesthesiologists and nurse anesthetists in Thailand. Due to the physically demanding nature of anesthesia practice-such as prolonged standing, awkward postures during airway management, and high-stress environments-work-related musculoskeletal disorders are highly prevalent but often underreported. This study aims to collect self-reported data via an anonymous online questionnaire to assess pain severity, specific anatomical locations, economic burdens (including absenteeism and presenteeism), and the overall impact on the health-related quality of life. Ultimately, the findings from this study will help establish a national evidence-based database to improve workplace safety, inform occupational health policies, and enhance the overall well-being of anesthesia providers in Thailand.

Read the detailed description

Anesthesia providers, encompassing both anesthesiologists and nurse anesthetists, are highly susceptible to work-related musculoskeletal disorders (WMSDs) and chronic occupational pain. The nature of the profession requires prolonged static postures, repetitive movements, manual patient handling, and high-stress clinical management, all of which contribute to cumulative physical strain. Despite the critical role these professionals play in the healthcare system, comprehensive national data regarding the prevalence, severity, and multidimensional impacts of occupational pain within this specific population in Thailand remains highly limited.

This study is a nationwide, cross-sectional observational survey designed to evaluate the prevalence of chronic occupational pain and identify its associated factors among Thai anesthesia providers. The target population includes active anesthesiologists and nurse anesthetists aged 25 to 60 years who have been working in their current roles for at least six months.

The primary objective is to estimate the national prevalence of chronic occupational pain within this professional group. Secondary objectives include:

Assessing the severity, interference, and anatomical distribution of the pain using the validated Brief Pain Inventory-Short Form (BPI-SF Thai version).

Evaluating the impact of chronic pain on the health-related quality of life using the EuroQol 5-Dimension 5-Level (EQ-5D-5L) instrument.

Determining the economic burden associated with occupational pain, specifically focusing on healthcare utilization, absenteeism, and presenteeism (reduced work productivity).

Exploring the correlation between workplace exposures (e.g., specific clinical procedures, working hours, ergonomic factors) and the development of chronic pain.

Data collection will be conducted entirely through a structured, anonymous online questionnaire. The survey is designed with logic-branching to minimize respondent burden, ensuring that participants only answer questions relevant to their specific pain status. By gathering high-quality empirical data, this study aims to raise awareness among healthcare administrators, guide the development of targeted ergonomic interventions, and promote sustainable preventive strategies to secure the physical well-being and career longevity of anesthesia personnel.

Keywords
Anesthesiologists, Nurse Anesthetists, Anesthesia Providers, Healthcare Personnel, Work-Related Musculoskeletal Disorders (WMSDs), Occupational Health, Ergonomics, Quality of Life, Presenteeism, Absenteeism
Medical subject headings
Chronic Pain, Musculoskeletal Pain, Occupational Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT07778381
Study groupRoleWhat they receive
Thai Anesthesia ProvidersActive anesthesiologists and nurse anesthetists, aged 25 to 60 years, who are currently practicing in Thailand and have been in their current roles for at least six months.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Prevalence of Chronic Occupational Pain

    The proportion (%) of anesthesia providers experiencing chronic work-related pain, defined as pain lasting for at least 3 months. This is a binary (yes/no) determination collected via a self-reported structured questionnaire assessing the presence and anatomical locations of the pain; no severity scale or scoring system is used for this outcome.

    Measured: At the time of survey completion (Day 1)

Secondary outcomes (4)
  1. Pain Severity and Interference

    Assessed using the validated Thai version of the Brief Pain Inventory-Short Form (BPI-SF). It measures pain severity (scored from 0 = no pain to 10 = pain as bad as you can imagine) and the degree to which pain interferes with daily functions (scored from 0 = does not interfere to 10 = completely interferes). Higher scores indicate greater pain severity and interference.

    Measured: At the time of survey completion (Day 1)

  2. Health-Related Quality of Life

    Evaluated using the Thai version of the EuroQol 5-Dimension 5-Level (EQ-5D-5L) instrument. It assesses five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression, each rated on a severity scale from 1 (no problems) to 5 (extreme problems). Dimension responses are converted into a single index score using the Thai value set, ranging from a minimum of -0.42 (worse than death) to a maximum of 1.00 (full health). Lower index scores indicate poorer health status, while higher scores indicate better health status.

    Measured: At the time of survey completion (Day 1)

  3. Absenteeism Due to Pain

    Measured by the self-reported number of work days missed due to pain over a specified recall period.

    Measured: At the time of survey completion (Day 1)

  4. Presenteeism Due to Pain

    Measured by the estimated percentage of reduced work effectiveness while experiencing pain at work over a specified recall period.

    Measured: At the time of survey completion (Day 1)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Aug 2026
  2. Study start15 Aug 2026 (estimated)
  3. Primary completion1 Nov 2026 (estimated)
  4. Study completion1 Jan 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Ecologic or community
Time perspective
Cross-sectional
Enrolment
1,800 participants (estimated)
Target duration
1 Day
IDs, dates and publications
ClinicalTrials.gov ID
NCT07778381
Sponsor's protocol ID
078/2569(IRB3)
Status last verified
Aug 2026
First submitted
17 Aug 2026
Last updated
21 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Individual participant data will not be shared publicly to protect the privacy and confidentiality of the participants, in accordance with the Siriraj Institutional Review Board (SIRB) approval. Aggregated data and summaries will be published in a peer-reviewed journal.

Questions about this trial

What is this clinical trial studying?

An observational study of Chronic Pain and Musculoskeletal Pain, run by Mahidol University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 21 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Endu Obomkul, M.D. (+66 834694072, ohmaiaikuku@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Prevalence of Chronic Occupational Pain (time frame: At the time of survey completion (Day 1)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Aug 2026.

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