Variables to Be Monitored via Biomedical Sensors for Complete Type 1 Diabetes Mellitus Management: An Extension of the “On-Board” Concept

Table 1

Current commercialized CGM sensor systems.

Company	Model	Features		MARD
Abbott		Trend marks; Rate-of-change alerts; Alarms (hyper/hypo); 5-day lifetime	Calibration recommended up to 72 h	14.5% [26]
		Trend marks; No alerts or alarms; 14-day lifetime; NFC communication with smartphone	Read approaching meter to sensor (NFC technology); No calibration needed	11.4% [27]
Dexcom		Trend marks; Rate-of-change alerts; Alarms (hyper/hypo); 7-day lifetime	Remote monitoring; Calibration every 12 h	13% [28] (Original algorithm)
		Trend marks; Rate-of-change alerts; Alarms (hyper/hypo); 7-day lifetime	Remote monitoring; Wireless communication with smartphone; Calibration every 12 h	9% [29]
Medtronic		Trend marks; Rate-of-change alerts; Alarms (hyper/hypo); 6-day lifetime	Integration with Medtronic 530G insulin pumps; Calibration every 12 h	13.6% [30]
		Trend arrows; Rate-of-change alerts; Alarms (hyper/hypo); 7-day lifetime	Integration with Medtronic 670G insulin pumps; Calibration every 12 h	9.1% [31]
Senseonics		Trend arrows; Rate-of-change alerts; Alarms (hyper/hypo); 90-day lifetime	Communication with smartphone; Sensor inserted under the skin	11.6% [32]