Table 1.

Comparison of health care platforms.

Characteristic	Clinic-based	Technology-based
Principal measurers of health	Clinicians	Devices
Health measurements	Primarily subjective	Primarily objective
Frequency of measurements	Episodic	Continuous
Location of visits	Artificial like the clinic	Real world including the home
Nature of visits	Primarily synchronous	Synchronous and asynchronous
Clinicians	Few	Many
Limiting factors	Social and geographical	Social and technological
Concerns	Access, quality, and cost	Privacy, equity, and duty