Hong Kong has enrolled nearly all of its older residents in the city's Electronic Health System, or eHealth, but only less than half have activated its mobile app, indicating a digital access gap amid efforts to expand the records system into a comprehensive healthcare information infrastructure.

The figures were disclosed by Secretary for Health Lo Chung-mau in a written reply to Legislative Council member Maggie Chan, who asked how the government is supporting seniors, who largely access healthcare services, under the five-year eHealth+ development plan.