Figure 2From: Auricular acupuncture with seed or pellet attachments for primary insomnia: a systematic review and meta-analysisThe pooled outcomes of effective rate and total sleep time revealed a better therapeutic effect of auricular acupuncture, statistically. A. Forest plot of effective rate; Proportion of patients had positive response to the intervention. B. Forest plot of total sleep time; Time in bed minus total awake time, better indicated by higher values, longer than six hours supposed to be normal.Back to article page