Thanks,
@Dolphin for the extra information. I hadn't come across before the idea that because the London criteria exclude psych disorder, therefore the majority of the non London ones did have a psych disorder.
So, if I understand the figures correctly, of the 640 participants:
300 have 'any psychiatric disorder' ( some of whom may have ME including PEM under a different definition.
329 satisfy London criteria, ie no psych disorder
11 have no psych disorder and do not satisfy London criteria
I remember the claim that they analysed according to the different definitions and found no significant difference. I can't remember whether they actually gave figures for this. Given their propensity for twisting the truth, I'd want to see the figures before I believed this statement.