Fig. 6From: Effectiveness of acupuncture on anxiety disorder: a systematic review and meta-analysis of randomised controlled trialsFunnel plots of all studies and subgroups. a The subgroups included the group using HAMA and the group using self-assessment for anxiety assessment. b The subgroups included the group with a longer duration of acupuncture treatment (≥ 6 weeks) and the group with a shorter duration of acupuncture treatment (< 6 weeks). c The subgroups included the group using western medicine as the control condition and the group using other traditional Chinese treatments as control conditionsBack to article page