Table 1.

Classification of Participants Based on PEs Assessment at Ages 18 and 20 and Allocation of Participants in Specific Subsamples for Analyses

Age 18	Age 20	Label	Sample	PRSa Subsample
n = 252	n = 247		n = 246	n = 180
126 HC	111 HC	HC	111	79
	11 emergent PEsb	Transient PEs	67	52
126 PEs	56 resolving PEsc
	69 PEs	Persistent PEsd	68	49

HC, healthy controls; PEs, psychotic experiences; PRS, polygenic risk score.

^aResolving PEs were those who were rated as having had PEs at age 18 but with no indication of any PEs at age 20.

^bOut of the 69 individuals with persistent PEs, one participant was found to have an enlarged ventricle and was excluded from further analysis.

^cOnly 180 out of the 247 individuals with PEs at both time-points had a PRS for schizophrenia available.

^dEmergent PEs were individuals that were rated as not having had any PEs at age 18, but were rated as having had PEs at age 20.