Can we mitigate the psychological impacts of social isolation using behavioural activation? Long-term results of the UK BASIL Urgent Public Health COVID-19 pilot randomised controlled trial and living systematic review

• Littlewood, Liz https://orcid.org/0000-0002-4606-4590
• McMillan, Dean https://orcid.org/0000-0002-2901-8410
• Chew-Graham, Carolyn A
• Bailey, Della https://orcid.org/0000-0002-6059-2111
• Gascoyne, Samantha https://orcid.org/0000-0001-7763-2776
• Sloan, Claire Elizabeth https://orcid.org/0000-0003-1589-5145
• Burke, Lauren https://orcid.org/0000-0002-9158-2055
• Coventry, Peter https://orcid.org/0000-0003-0625-3829
• Crosland, Suzanne https://orcid.org/0000-0001-6658-6815
• Fairhurst, Caroline Marie https://orcid.org/0000-0003-0547-462X
• Henry, Andrew
• Hewitt, Catherine Elizabeth https://orcid.org/0000-0002-0415-3536
• Baird, Kalpita https://orcid.org/0000-0001-8472-5698
• Ryde, Eloise
• Shearsmith, Leanne
• Traviss-Turner, Gemma D
• Woodhouse, Rebecca https://orcid.org/0000-0001-8374-8994
• Webster, Judith
• Meader, Nick https://orcid.org/0000-0001-9332-6605
• Churchill, Rachel https://orcid.org/0000-0002-1751-0512
• Eddy, Elizabeth
• Heron, Paul Nicholas https://orcid.org/0000-0003-3529-5737
• Hickin, Nisha
• Shafran, Roz
• Almeida, Osvaldo P
• Clegg, Andrew
• Gentry, Tom
• Hill, Andrew
• Lovell, Karina
• Dexter Smith, Sarah
• Ekers, David
• Gilbody, Simon https://orcid.org/0000-0002-8236-6983

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• Accepted: 20 September 2022