Table 5.

Performance of the quantile regression forest model at different thresholds and the average time to predict a hypoglycemic event.

Metric	30-minute prediction horizon				60-minute prediction horizon
	Threshold 1	Threshold 2	Threshold 3	Threshold 1		Threshold 2	Threshold 3
Sensitivity (%)	98.54	99.27	99.51	97.72		98.29	98.99
Specificity (%)	98.57	97.56	96.68	98.49		97.06	95.53
False alerts (n)	6932	11,960	16,049	7215		14,027	21,297
False alerts with transient events as positives (n)	3736	8149	12,007	3974		9956	16,775
False alert rate (%)	22.36	35.36	43.34	22.44		37.19	46.96
Average time to predict an event (minutes)	18.78	22.95	26.51	25.24		35.08	48.35