Offering mental health first aid to a person with depression: a Delphi study to re-develop the guidelines published in 2008

BACKGROUND: Depressive disorder is ranked as the largest contributor to non-fatal health burden. However, with prompt treatment, outcomes can improve. Family and friends are well placed to recognise the signs of depression and encourage early help seeking. Guidelines about how members of the public can provide mental health first aid to someone who is experiencing depression were developed in 2008. A Delphi study was conducted to re-develop these guidelines to ensure they are current and reflect best practice. METHODS: A survey was developed using the 2008 depression mental health first aid guidelines and a systematic search of grey and academic literature. The questionnaire contained items about providing mental health first aid to a person with depression. These items were rated by two international expert panels – a lived experience panel (consumers and carers) and a professional panel. RESULTS: Three hundred and fifty-two items were rated by 53 experts (36 with lived experience and 17 professionals) according to whether they should be included in the revised guidelines. There were 183 items that met the criteria to be included in the updated guidelines. CONCLUSIONS: This re-development has added detail to the previous version of the guidelines, giving more guidance on the role of the first aider and allowing for a more nuanced approach to providing first aid to someone with depression. These guidelines are available to the public and will be used to update the Mental Health First Aid courses. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s40359-019-0310-3) contains supplementary material, which is available to authorized users.