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Table 1 Evaluation of the intervention effects in an acupuncture trial using the TIGER design

From: Target dIsease-Guided placEbo-contRolled (TIGER) design: a novel method for clinical trials of acupuncture

Target disease

Arm one

Arm two

Migraine

Real acupuncture effects plus placebo effectsa

Real acupuncture effectsb

Constipation (pseudo)

Real acupuncture effectc

Real acupuncture effects plus placebo effectsd

  1. abcdRepresent the effective rate of the four analytical units. TIGER, target disease-guided placebo-controlled.