Copyright and reuse:Sussex Research Online is a digital repository of the research output of the University.Copyright and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable, the material made available in SRO has been checked for eligibility before being made available.Copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. This is the author's version of a work that was accepted for publication in . A definitive version was subsequently published in Journal of the American Academy of Child and Adolescent Psychiatry, [VOL 50, ISSUE 3, (2011) Method: Families of 74 anxious children (aged 9 years or below) took part in a randomised controlled trial, which compared the new 10-session, group-format intervention with a wait-list control condition. Outcome measures included blinded diagnostic interview, and self-reports from parents and children..Results: Intention to treat analyses indicated that children whose parent(s) received the intervention were significantly less anxious at the end of the study than those in the control condition. Specifically, 57% of those receiving the new intervention were free of their primary disorder, compared to 15% in the control condition. Moreover, 32% of treated children were free of any anxiety diagnosis at the end of the treatment period, compared to 6% of those in the control group. Treatment gains were maintained at 12-month follow-up.Conclusions: This new parenting-based intervention may represent an advance in the treatment of this previously neglected group.