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Comparison of acceptable noise level obtained with different methods

Comparison of acceptable noise level obtained with different methods

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1800014829
Enrollment
Unknown
Registered
2018-02-07
Start date
2018-02-22
Completion date
Unknown
Last updated
2018-02-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sensorineural deafness

Interventions

Two ways:loudspeaker versus earphones

Sponsors

Shanghai Sixth People's hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Healthy young people: 20-30 years old, with daily communication in Putonghua, no history of otology and no recent history of otorhinolaryngology or upper respiratory tract infections; Pure tone thresholds are within normal range (binaural 250, 500, 1000, 2000, 40 00 and 8000Hz air conduction threshold are = 15dB HL). Acoustic conductivity test tympanogram are A-type curve, both ears can lead to the frequency of acoustic reflex.

Exclusion criteria

Exclusion criteria: Patients with otology-related diseases; subjective malicious do not cooperate.

Design outcomes

Primary

MeasureTime frame
acceptable noise level;—

Contacts

Public ContactFeng yan mei

Shanghai Sixth People's hospital

feng.yanmei@126.com+86 021-24058706

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026