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Large study reveals how age affects unexplained physical symptoms

NCT ID NCT04815863

Knowledge-focused Sponsor: RenJi Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at over 9,000 people in China to compare how often older and younger adults experience physical symptoms without a clear medical cause, like pain or fatigue. Researchers used questionnaires to measure these symptoms, along with depression and anxiety. The goal was to understand differences between age groups and find risk factors for these symptoms in the elderly.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

9,110 people

The number who actually took part.

Started

Mar 2019

Finished

Jun 2019

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

subjects are enrolled between March 2019 and June 2019 in 105 representative community health service institutions in Shanghai, China.

Ages

18 to 100 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. voluntary participants and gave written consent to participates the study; 2. undertook SSS-CN questionnaire, PHQ-9 and GAD questionnaires； Exclusion Criteria: 1. patients who have lost their self-assessed abilities or refuse to participate ; 2. patient with cancer and central nervous system disease; 3. patients who have been previously confirmed serious mental disorders, mental retardation or dementia.

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Conditions

The condition(s) this trial relates to.

somatization disorder somatoform disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Somatization disorder

Contacts and locations

Locations

  • Renji Hospital

    Shanghai, Shanghai Municipality, 200127, China

  • Renji Hospital

    Shanghai, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.