. 2019 Dec 25;23(1):100801. doi: 10.1016/j.isci.2019.100801

Table 2.

Mean Classifier Accuracies, per Group

	Group Chance	Mean Accuracy	Lower 95% CI	Upper 95% CI	Mean Accuracy (Opposite Age Mask)	Lower 95% CI	Upper 95% CI
UT Repeat	0.063	1.00^a	–	–	0.92^a	0.919	0.922
MSC Repeat	0.100	1.00^a	–	–	1.00^a	–	–
UT MZ Twins	0.066	0.52^a	0.518	0.525	0.32^a	0.322	0.327
HCP MZ Twins	0.041	0.57^a	0.565	0.571	0.35^a	0.353	0.359
UT DZ Twins	0.053	0.24^a	0.242	0.247	0.24^a	0.243	0.248
HCP DZ Twins	0.039	0.22^a	0.218	0.222	0.11	0.108	0.112
UT SS Siblings	0.057	0.35^a	0.349	0.354	0.23^b	0.232	0.236

Group chance values are empirical chance and are calculated by running the classifier after randomly shuffling scan pair labels (scan pairs were no longer correctly labeled with their matching scan). The left side of the table is running the classifiers normally, and the right side is running the classifier with the opposite age group's feature mask. (P values indicate classifier performance versus chance.).

p < 0.001.

p < 0.05.