Table I.

Demographic data and imaging parameters for selected resting‐state functional MRI data sets of the image repository “1000 Functional Connectomes”, the corresponding lFCD‐variability, and the variance of its first principal component, PCA#1

Data set	Subjects	Age (years)	tp	TR (s)	Variability (%)	PCA #1 (%)
Beijing	122F/76M	18–26	225	2.0	32	27a
Cambridge	123F/75M	18–30	119	3.0	31	33a
Leiden	8F/23M	20–27	215	2.2	21	40a
Oulu	66F/37M	20–23	245	1.8	33	29a
St. Louis	17F/14M	21–29	127	2.5	23	29a

^aThe factors of the first principal component were significantly correlated (P < 0.05, two‐sample t‐test) with gender.

tp, number of time points in the image time series; TR, repetition time of the MRI acquisition; F/M, women/men.