When this article was originally published in Psychological Medicine, Table 1 was incorrectly laid out, with data being used in the wrong columns. This has now been updated online with the correct layout.
The publisher apologises for this error.
Published online by Cambridge University Press: 02 May 2025
When this article was originally published in Psychological Medicine, Table 1 was incorrectly laid out, with data being used in the wrong columns. This has now been updated online with the correct layout.
The publisher apologises for this error.