Comparison of Body, Auricular, and Abdominal Acupuncture Treatments for Insomnia Differentiated as Internal Harassment of Phlegm-Heat Syndrome: An Orthogonal Design

Table 2

Designs for protocols and levels.

Protocols	Levels
A: body acupuncture	Level 1: 0 (body acupuncture not applied)
	Level 2: basic acupoints
	Level 3: basic points + syndrome differentiation acupoints
B: auricular acupuncture	Level 1: basic acupoints
	Level 2: 0 (auricular acupuncture not applied)
	Level 3: basic points + acupoints based on TCM theories
C: abdominal acupuncture	Level 1: basic acupoints
	Level 2: basic points + syndrome differentiation acupoints
	Level 3: 0 (abdominal acupuncture not applied)