Table 3.

Summary of cognitive performance: Number of available datasets (N), median, full and interquartile range of performance.

Test	Parameter of interest	N	Median	Interquartile Range	Range
SRT	Mean correct latency (ms)	282	290.2	252.1–348.6	200.8–801.4
TMT-A	Time for completion (s)	267	45	36.02–57.50	19–132
TMT-B	Time for completion (s)	250	100	81–113.04	25.39–298
GPT	Time for completion (s)	270	93	80–110	50–254.27
SSP	Span length	280	5	4–5	3–8
PAL	Memory score	280	13	11–17	0–25
VRM	Number of correctly recognised items after delay	221	22	20–23	0–24
Global cognition	‘g’	243	0.10	−0.50–0.74	−2.70–2.35