Situational Awareness and Proactive Engagement Predict Higher Time in Range in Adolescents and Young Adults Using Hybrid Closed-Loop

Table 3

Univariate predictors of daily time in range (within-person).

	Prediction of same-day TIR			Prediction of next-day TIR
	Effect size (r)	t		Effect size (r)	t
% Correct glucose estimate (Q2)	+0.15	1.95	0.053	+0.13	1.56	0.12
% Underestimate glucose (Q2)	−0.31	−4.04	<0.001	−0.15	−1.87	0.06
% Overestimate glucose (Q2)	+0.19	2.32	0.02	+0.02	0.18	0.86
% Correct direction glucose trending (Q3)	+0.22	2.78	0.006	−0.03	−0.36	0.72
% Correct prediction 1 hour (Q4)	+0.12	1.50	0.14	−0.01	−0.06	0.95
% Underestimate prediction (Q4)	−0.25	−3.16	0.002	+0.06	0.75	0.45
% Overestimate prediction (Q4)	+0.18	2.28	0.02	+0.08	−0.97	0.34
# CGM alerts received/day	−0.30	−3.38	0.001	−0.15	−1.53	0.13
% CGM alerts acknowledged	+0.41	4.55	<0.001	+0.28	2.85	0.005
Mean # pump engagements/day	−0.28	−3.62	<0.001	−0.02	−0.28	0.78
# Boluses given/day	−0.30	−3.90	<0.001	+0.23	2.83	0.005
Total grams of carbs entered/day	−0.02	−0.14	0.89	+0.10	0.85	0.40
Average grams of carbs per carb entry	+0.01	0.14	0.89	−0.11	−0.98	0.33
Total # of carb entries/day	+0.09	0.91	0.36	+0.20	2.05	0.04
% Boluses that included carb entry	+0.41	4.63	<0.001	+0.32	3.31	0.001

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