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CompletedNCT07533916ICU-NoiseUpdated Apr 21, 2026

ICU Environmental Noise and Healthcare Workers

An observational study in Noise Exposure, Occupation and Intensive Care (ICU), sponsored by Tepecik Training and Research Hospital. Completed at 1 site in Turkey (Türkiye). Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-21.

Primary conditionAnxiety Disorders(the registry's first term)UnverifiedIs this wrong?The registry often attaches Anxiety Disorders to studies about something else, and this study's title and listed conditions do not name it. No better condition is named, so the registry's term is kept.

Sponsored by Tepecik Training and Research Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
102
Ages
18 Years and older
Sex
All
01

Study summary

This prospective observational study aims to evaluate the effects of environmental noise in the intensive care unit on healthcare workers. Healthcare personnel working in intensive care units and hospital wards will be compared in terms of cochlear function, noise sensitivity, anxiety levels, perceived noise burden, and functional effects of noise exposure. The study seeks to determine whether long-term occupational exposure to intensive care unit noise is associated with measurable auditory and non-auditory effects in healthcare workers.

Read the detailed description

This prospective observational study is designed to evaluate the potential auditory and non-auditory effects of intensive care unit environmental noise on healthcare workers. The study is being conducted in a tertiary training and research hospital and includes volunteer healthcare personnel working in intensive care units and hospital wards. Participants are classified according to their work setting, and comparisons are performed between the intensive care unit group and the ward group.

The study focuses on occupational exposure to the intensive care environment and its possible association with cochlear function, perceived noise burden, noise sensitivity, anxiety levels, and functional effects related to workplace noise. Audiological assessment includes distortion product otoacoustic emission measurements, and questionnaire-based assessments are used to evaluate perceived noise-related burden and associated psychological and functional effects. The study aims to determine whether prolonged work in the intensive care environment is associated with measurable changes in hearing-related parameters and subjective outcomes when compared with work in hospital wards.

02

Conditions studied

  • Noise Exposure
  • Occupation
  • Intensive Care (ICU)
  • Healthcare

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Keywords

  • noise
  • noise exposure
  • intensive care unit
  • anxiety
03

In context

Anxiety Disorders Unverified

7,201 studies on the registry are indexed under Anxiety Disorders; 1,682 are open to participants now.

This study's enrollment of 102 is below the median of 168 across 977 observational studies indexed under Anxiety Disorders.

Browse Anxiety Disorders studies →

Lead sponsor

Tepecik Training and Research Hospital is the lead sponsor of 33 studies on the registry; 3 are open to participants now.

Compared within Anxiety Disorders, the registry's first condition term, which may not be this study's main condition. Counted across the registry records on this site, refreshed daily. How we classify →

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

The study population consists of volunteer healthcare personnel actively working in intensive care units and hospital wards at a tertiary training and research hospital.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Age ≥18 years, Actively working in the Anesthesiology and Reanimation ICU, or in a hospital ward, Voluntary participation in the study,

Exclusion criteria

Exclusion Criteria:

Age \<18 years, Pregnancy, Previously diagnosed hearing loss, History of head trauma, History of ear surgery

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
102 participants (actual)
Patient registry
No

Groups and cohorts

  • ICU group

    Healthcare personnel actively working in intensive care units

    Other: Intensive care unit environmental noise exposure

  • Ward group

    Healthcare personnel actively working in hospital wards

Interventions

  • OtherIntensive care unit environmental noise exposure

    Occupational exposure to routine environmental noise in the intensive care unit setting during regular work activities.

06

What researchers measure

Primary outcomes

  1. Cochlear Function Assessed by DPOAE

    Cochlear function will be evaluated using distortion product otoacoustic emission (DPOAE) amplitudes and signal-to-noise ratio values, and compared between healthcare workers in the ICU group and the ward group.

    Time frame: At baseline

07

Study locations

1 site
  • Izmir Tepecik Training and Research Hospital
    Izmir, Turkey (Türkiye)
08

References and documents

Individual participant data

Plan to share: No — Individual participant data (IPD) will not be shared because this study was conducted at a single center and no formal data-sharing plan was established at the time of study initiation.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2025 to primary completion in Mar 2026, 3 months.

Of 411 non-industry observational studies under Anxiety Disorders, half reached primary completion within 19 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 49. This study's 3 months is below that.

Counting every sponsor, half of 439 studies reached it within 19 months; a quarter within 6 and three quarters within 48.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 9, 2026
First posted
Apr 16, 2026
StartActual
Nov 23, 2025
Primary completionActual
Mar 21, 2026
CompletionActual
Mar 21, 2026
Last update
Apr 21, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 21, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07533916
Lead sponsor
Tepecik Training and Research Hospital
Responsible party
Tunzala Yavuz (Intensive Care Specialist, Tepecik Training and Research Hospital) — Principal investigator
First posted
Apr 16, 2026
Start date
Nov 23, 2025
Primary completion
Mar 21, 2026
Completion
Mar 21, 2026
Last update
Apr 21, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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