Table 2.

Inpatient Reference Glucose Values by Time of Day

	Daytime (7 a.m.–11 p.m.)			Nighttime (11 p.m.–7 a.m.)
	Day 1 (n=48)	Day 2 (n=48)	Day 3 (n=46)	Day 1 (n=48)	Day 2 (n=47)	Day 3 (n=45)
Hours of glucose readings	16 (16, 16)	16 (16, 16)	16 (16, 16)	8 (8, 8)	8 (8, 8)	8 (8, 8)
Mean glucose (mg/dL)	159 (140, 176)	146 (135, 160)	143 (137, 157)	123 (113, 134)	123 (112, 138)	122 (115, 137)
Glucose values
71–180 mg/dL	72% (59%, 81%)	78% (68%, 88%)	81% (75%, 88%)	100% (82%, 100%)	100% (88%, 100%)	100% (94%, 100%)
>180 mg/dL	28% (19%, 39%)	22% (9%, 31%)	19% (10%, 25%)	0% (0%, 16%)	0% (0%, 13%)	0% (0%, 6%)
>250 mg/dL	6% (0%, 13%)	0% (0%, 8%)	0% (0%, 0%)	0% (0%, 0%)	0% (0%, 0%)	0% (0%, 0%)
Percentage of glucose values ≤60 mg/dLa	0.4%	0.4%	0.1%	0.0%	0.3%	0.3%
Participants with [n (%)]
Glucose nadir ≤60 mg/dL	6 (13%)	6 (13%)	2 (4%)	0 (0%)	2 (4%)	2 (4%)
Glucose nadir 61–70 mg/dL	13 (27%)	5 (10%)	7 (15%)	7 (15%)	4 (9%)	3 (7%)
>5% values ≤60 mg/dL	0 (0%)	0 (0%)	0 (0%)	0 (0%)	2 (4%)	1 (2%)

Data are medians (25^th, 75^th percentiles) unless stated otherwise.

^aPooled across participants.