Reported use is not a measure of outcomes
Population surveys can show how many people say they used an approach. They do not establish the quality of a particular program, the appropriateness of care, or the effect of any individual treatment.
Training and authorization are separate checks
Program length, accreditation, examinations, professional titles, and scope of practice are governed by different bodies. A prospective student should verify the exact program and the rules where they intend to live and work.
Workforce estimates have a date
The workforce figure on this page is useful historical context, but it is explicitly a 2016 estimate. It should not be presented as a current count without a newer named source.