Prior to 1907, little or no use was made of the sphygmomanometer except in clinical cases. Three years ago in a paper delivered before the Medical Directors Association, I said:
No practitioner of medicine should be without a sphygmomanometer. He has in this instrument a most valuable aid in diagnosis. The sphygmomanometer is indispensable in life-insurance examinations, and the time is not far distant when all progressive life-insurance companies will require its use in all examinations of applicants for life insurance.
To-day this prediction is practically fulfilled, and no up-to-date practitioner is without this very valuable aid in diagnosis, much of which has been due to the requirements of life-insurance companies in insisting on their examiners using the sphygmomanometer in examinations for life insurance. I have received hundreds of letters thanking me for insisting on its use in examinations for the company and testifying to its very great value in
FISHER JW. THE DIAGNOSTIC VALUE OF THE SPHYGMOMANOMETER IN EXAMINATIONS FOR LIFE INSURANCE. JAMA. 1914;LXIII(20):1752-1754. doi:10.1001/jama.1914.02570200046013