Table 1. Participation Rates of Random Samples of Licensed Acupuncturists, Chiropractors, Massage Therapists, and Naturopathic Physicians by State.
	Eligible Practitioners Interviewed			Eligible Practitioners Providing Visit Data			Patient Visits Reported‡
Profession and State	No.	Percent*		No.	Percent†		Total	Mean per Practitioner
Acupuncture
Massachusetts	101	91.0		67	75.3		1,298	19.4
Washington	116	88.6		66	81.5		1,263	19.1
Chiropractic
Arizona	104	61.2		62	68.1		1,201	19.4
Massachusetts	101	85.6		68	76.4		1,349	19.8
Massage Therapy
Connecticut	114	85.7		61	65.6		965	15.8
Washington	112	83.6		65	69.9		1,040	16.0
Naturopathy
Connecticut	59	93.6		34	61.8		631	18.6
Washington	111	78.2		65	69.9		1,186	18.2
*Denominator is licensed practitioners who see patients and for whom a telephone number could be identified. †Denominator is interviewed practitioners who saw a minimum number of patients per week (varied by profession—see Methods section of text). ‡Each practitioner was asked to provide descriptive information on 20 consecutive patient visits.