Normative Data of Extended High Frequency Audiometry in Normal Hearing Subjects with Different Aged Groups
Author Information
Author(s): Luengrungrus Kittiphorn, Thanawirattananit Panida, Teeramatwanich Watchareporn, Beynon Andy J.
Primary Institution: Faculty of Medicine, Khon Kaen University, Thailand
Hypothesis
The study aims to determine normative EHFA data across different age groups in a healthy Thai population.
Conclusion
Normative EHFA data were established for healthy Thai adults, divided into two age groups for clinical use.
Supporting Evidence
- Participants were categorized into five age groups: 18–30, >30–40, >40–50, >50–60, and >60–70 years.
- Median hearing thresholds increased with age, with significant differences starting after age 40.
- The study established two new subgroups for clinical use: 18–40 years and >40–70 years.
- No significant differences in hearing thresholds were found between sexes and ear sides.
Takeaway
This study found that as people get older, their ability to hear high-frequency sounds decreases, and it created new guidelines for what is considered normal hearing in different age groups.
Methodology
This cross-sectional study included 134 participants aged 18–70 years, categorized into five age groups, and assessed their hearing thresholds using EHFA.
Potential Biases
The study applied strict inclusion and exclusion criteria, which may limit its applicability to broader populations.
Limitations
The study's generalizability may be limited as it was conducted within a healthy population and may not reflect individuals at risk of hearing loss.
Participant Demographics
Participants were Thai individuals aged 18–70 with normal hearing thresholds.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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