Table 2.

Summary of Results.

Participant	Hypoglycemic eventsa						Mean time (minutes) hypoglycemic event from last bolus		Mean time (minutes) algorithm stopped delivering insulin prior to hypoglycemic event	Mean plasma glucose Mg/dL
	Day 1	Day 2	Day 3	Day 4	Nocturnal hypoglycemia	Exercise hypoglycemia
1	0	0	0	0	0	0	N/A		N/A	119
2	0	1	1	0	0	0	153		90	146
3	0	0	0	0	0	0	N/A		N/A	164
4	0	2	0	0	0	0	130		60	144
5	0	0	1	0	0	0	136		184	146
6	0	0	0	0	3	0	N/A		N/A	153
7	0	0	0	0	0	0	N/A		N/A	160
8	2	0	1	0	1b	0	40		105	153
Total	2	3	3	0	1b	0	Mean ± SD	115 ± 50	110 ± 53	148 ± 14

Data are given as mean ± SD where appropriate.

^aHypoglycemic event defined as plasma glucose <62 mg/dL.

^bHypoglycemic event occurred after the patient exited closed loop due to a pump site failure and hyperglycemia, and a manual correction of insulin was given.