Table 1.A.

Study and participant characteristics

Citation	Study group/PDS subgroup	SZ-CN n	Mean Age	%Non-Caucasian	%maleSZ-%maleCN	% 1st gen AP	Proportion Neg. Sym. Severity
Barch and Moran, unpublished supplied data	SZ	67-34	37.44	71.10%	61.19%-70.59%	18.00%
Barch et al., 2014	SZ	59-39	38.35	64.70%	57.60%-48.70%	5.00%	0.26
Bedwell et al., 2016, supplied data	SZ	10-13	34.99	48.08%	60.00%-53.85%
Cassidy et al., 2012	SZ	91-91	24.65		75.00%-69.00%		0.18
Chan et al., 2012	PDS	92-85	19.25		44.57%-40.00%
Chan et al., 2016	PDS/SocAnh	8-20	19.04		100.00%-55.00%
Chuang et al., 2014	SZ	22-20	33.52	21.50%	84.21%-75.00%		0.33
Cooper et al., 2017	CHR	219-1006	20.47	38.75%	25.30%-26.90%
Culbreth et al., 2016	SZ	57-36	36.80	64.05%	66.70%-52.80%	1.00%	0.02
Da Silva et al., 2017, supplied data	SZ	84-81	34.65		58.33%-55.56%	1.00%	0.14
Docherty, 2013	SZ	35-29	43.70		82.00%-65.00%
Docherty, 2013	GHR	35-29	46.75		36.00%-65.00%
Edwards et al., 2015	SZ	53-52	41.49	56.00%	74.00%-63.00%		0.42
Eisenstein et al., 2017, supplied data	SZ	65-34	35.90	63.19%	43.08%-52.94%		0.24
Fonseca-Pedrero et al., 2017	PDS	28-639
Fortunati et al., 2015	SZ	53-46	39.20		60.40%-50.00%	47.20%	0.45
Gard et al., 2007	SZ	51-50	47.34	51.45%	64.71%-50.00%	31.37%
Gerritsen, 2015	SZ	59-65	45.15	45.85%	69.50%-65.10%
Gooding and Pflum, 2012	PDS/SocAnh	68-79	19.32		54.40%-67.10%
Gooding and Pflum, 2012	PDS/PerMag	88-79	19.33		45.50%-67.10%
Hooker et al., 2014	PDS/SocAnh	15-15	31.14		46.67%-33.33%	0.87%

Note. SZ = Schizophrenia, PDS = Psychometric Schizotypy, CN = Control, SocAnh = Social Anhedonia cluster, PerMag = Perceptual Aberration/Magical Thinking cluster. AP = antipsychotics, PANSS = Positive and Negative Syndrome Scales. Neg. sym. = negative symptoms.