According to the population health survey in 2014/2015, 0.8% of people aged 15 and above (1.1% for females and 0.5% for males) had self-reported doctor-diagnosed depression. The prevalence was the highest among people aged 65-74 at 1.4% (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