Table 4.

Announced Versus Unannounced Meal Analysis

	Announced	Unannounced	Difference	P
All meals
CGM average (mg/dL)	140.6 ± 35.0	197.8 ± 44.1	57.2 ± 16.0	<0.001
CGM SD (mg/dL)	30.1 ± 14.7	50.8 ± 14.2	20.7 ± 5.6	<0.001
CGM CV (%)	21.3 ± 9.3	26.8 ± 9.7	5.5 ± 3.7	<0.001
% >250 mg/dL (%)	2.2 ± 6.1	22.8 ± 24.0	20.6 ± 7.7	<0.001
% >180 mg/dL (%)	20.6 ± 25.7	60.9 ± 23.3	40.3 ± 9.3	<0.001
CGM maximum (mg/dL)	194.6 ± 46.6	268.2 ± 44.4	73.7 ± 17.5	<0.001
Meal size (carbohydrate g)	75 ± 18	91 ± 40	16 ± 13.3	0.28
Manual meal bolus (U)	9.6 ± 3.7	0 ± 0	9.6 ± 0.8	<0.001
Total insulin −1 to +4 h from meal (U)	15.0 ± 4.8	14.5 ± 5.8	0.5 ± 2.1	0.84
Breakfast
CGM average (mg/dL)	133.9 ± 27.5	174.4 ± 38.1	40.5 ± 13.5	0.0088
CGM SD (mg/dL)	28.3 ± 12.5	52.0 ± 11.6	23.7 ± 4.6	<0.001
CGM CV (%)	20.5 ± 6.4	31.5 ± 11.1	11.0 ± 3.8	<0.001
% >250 mg/dL (%)	2.3 ± 7.2	11.7 ± 15.2	9.5 ± 5.1	0.1794
% >180 mg/dL (%)	10.6 ± 16.2	49.6 ± 24.5	39.0 ± 8.5	<0.001
CGM maximum (mg/dL)	185.9 ± 39.4	256.9 ± 37.3	71.0 ± 14.7	<0.001
Lunch
CGM average (mg/dL)	140.3 ± 37.3	199.4 ± 50.7	59.1 ± 18.1	0.003
CGM SD (mg/dL)	33.2 ± 14.1	49.1 ± 15.3	15.9 ± 5.8	0.021
CGM CV (%)	24.4 ± 11.8	25.5 ± 8.9	1.1 ± 3.9	<0.001
% >250 mg/dL (%)	1.6 ± 3.8	22.2 ± 26.3	20.6 ± 8.4	0.046
% >180 mg/dL (%)	22.6 ± 28.3	61.6 ± 23.3	39.0 ± 9.7	0.009
CGM maximum (mg/dL)	201.5 ± 48.0	262.6 ± 52.5	61.1 ± 19.8	0.046
Dinner
CGM average (mg/dL)	147.5 ± 41.1	219.5 ± 30.6	72.0 ± 13.3	<0.001
CGM SD (mg/dL)	28.7 ± 17.9	51.3 ± 16.1	22.5 ± 6.5	<0.001
CGM CV (%)	19.0 ± 9.1	23.3 ± 7.1	4.3 ± 3.0	<0.001
% >250 mg/dL (%)	2.7 ± 7.3	34.5 ± 24.6	31.7 ± 7.9	<0.001
% >180 mg/dL (%)	28.7 ± 29.5	71.5 ± 17.0	42.8 ± 8.5	<0.001
CGM maximum (mg/dL)	196.4 ± 54.9	285.2 ± 38.7	88.9 ± 17.3	<0.001

Analyzed as the time from the start of the meal until 4 h after unless otherwise noted.