Audiqueen displays the normal zone (grey zone) and normal median hearing level thresholds (thin grey line) depending on the age and sex of the patient. The standard used is BS 6951:1988, EN 27029:1991, ISO 7029-1984, based on specification for threshold of hearing by air conduction as a function of age and sex for otologically normal persons).
Examples of the normal zone (95% confidence interval) and the median thresholds (grey line) in female subjects of 29, 49 and 69 years of age. Audiqueen automatically adapts the graph to the age of the patient shown.
You can choose to show or hide these components in the Format screen: