Table 1.

Simple and complex ML models

	Day 92 mean AUC (s.e.)	Day 92 Sens/Spec	Day na	Day n mean AUC	Day xb
Depression (ENR)
Mood variables	0.749 (0.010)	0.721/0.686	57	0.741	14
All variables	0.750 (0.017)	0.726/0.692	48	0.735	15
Depression (RF)
Mood variables	0.725 (0.017)	0.721/0.669	51	0.708	48
All variables	0.704 (0.012)	0.675/0.692	48	0.693	90
SI (ENR)
Mood variables	0.736 (0.025)	0.701/0.727	50	0.717	42
All variables	0.699 (0.028)	0.671/0.694	42	0.672	N/A
SI RF
Mood variables	0.717 (0.021)	0.713/0.699	41	0.696	90
All variables	0.663 (0.016)	0.642/0.663	81	0.656	N/A

AUC, area under the curve; ENR, elastic net regression; RF, random forest; SI, suicidal ideation; N/A, did not meet specified threshold during study period.

^aFirst day with mean AUC within 1 standard error of day 92 mean AUC.

^bLast day with mean AUC < 0.70.