According to the population health survey in 2014/2015, 2.2% of people aged 15 and above (2.1% for females and 2.2% for males) had self-reported doctor- or audiologist-diagnosed hearing impairment or loss. The prevalence increased rapidly from 4.6% among people aged 65-74 to 18.8% among people aged 85 and above (Centre for Health Protection, 2017).

References:

Centre for Health Protection. (2017). Report of Population Health Survey 2014/15. Retrieved from https://www.chp.gov.hk/en/static/51256.html