Table 1.

Frequency of psychotic-like symptoms

PSQ domain	Weighted positive endorsement	Number of respondents (unweighted)
Hypomania
Over the past year, have there been times when you felt very happy without a break for days on end?	10.7%	128
Was there an obvious reason for this? (No)	7.5%	89
Did your relatives or friends think it was strange or complain about it?	0.2%	2
Thought insertion
Over the past year, have you ever felt that your thoughts were directly interfered with or controlled by some outside force or person?	6.5%	78
Did this come about in a way that many people would find hard to believe, for instance through telepathy?	3.4%	41
Paranoia
Over the past year, have there been times when you felt people were against you?	18.4%	223
Have there been times when you felt that people were deliberately acting to harm you or your interests?	9.3%	112
Have there been times when you felt that a group of people were plotting to cause you serious harm or injury?	5.4%	65
Strange experiences
Over the past year, have there been times when you felt that something strange was going on?	8.1%	97
Did you feel it was so strange that other people would find it very hard to believe?	5.4%	65
Hallucinations
Over the past year, have there been times when you heard or saw things that other people couldn’t?	4.3%	52
Did you at any time hear voices saying quite a few words or sentences when there was no-one around that might account for it?	2.5%	30
Any psychotic symptom (yes to one or more probe questions)	29.7%	363
Met criteria based on secondary question(s)	12.3%	150