Table 3.

DeLong Test for significant difference between all ROC curves in Figure 2.

Test	DeLong Test $p$-values
	Raine Study	NFBC1986	NFBC1966
Elastic net vs. Reese score	0.49	0.12	0.03
Elastic net vs. Richmond young	0.00058	0.008	0.006
Elastic net vs. Richmond old	0.01	0.04	0.004
Reese vs. Richmond young	$1.57\times {10}^{-6}$	0.23	0.43
Reese vs. Richmond old	0.002	0.67	0.47
Richmond young vs. Richmond old	0.001	0.41	0.91