Table 1.

TM studies and pooled clinical outcomes.

Clinical outcomes		Type of variable	No. of studies	No. of patients
Primary endpoints
ER visits		Continuous	6 (5, 11, 12, 27–29)	1,099
Re-admissions	AE-related readmissions	Dichotomous	7 (10–13, 17, 30, 31)	1,281
	Rate of AE-related readmissions	Continuous	9 (5, 6, 9–12, 14, 28, 31)	1,573
	All-cause readmissions	Dichotomous	4 (10, 11, 16, 17)	772
Secondary endpoints
LOS	AE-related hospital days	Continuous	6 (5, 11, 13, 14, 17, 28)	1,073
	All-cause hospital days	Continuous	7 (9, 11, 13, 14, 16, 29, 31)	2,201
Mortality		Dichotomous	11 (5, 9–11, 13, 14, 28, 29, 31–33)	2,307
Time to first hospital readmission		Continuous	3 (14, 16, 31)	887
HRQoL	SGRQ, total	Continuous	6 (14, 27–29, 31, 33)	1,212
	EQ-5D, change	Continuous	2 (6, 28)	195
	EQ-VAS, change	Continuous	2 (6, 28)	195
Anxiety and depression	HADS-A, change	Continuous	2 (13, 28)	444
	HADS-D, change	Continuous	2 (13, 28)	444
Physical capacity	6MWT, distance, change	Continuous	2 (30, 32)	81

Readmission is defined as hospitalization to the same or different hospital for any reason within the following year after discharge (9). LOS was defined as hospital days per admission (days), and the number of days of an admission was calculated as the number of midnights during the admission dates, with the exception of a patient discharged on the same day who was allocated a 1-day LOS (5). TM, telemonitoring; ER, emergency room; AE, acute exacerbation; LOS, length of stay; HRQoL, health-related quality of life; SGRQ, St. George's Respiratory Questionnaire; EQ-5D, EuroQol five-dimension scale; EQ-VAS, EuroQol visual analog scale; HADS-A, Hospital Anxiety and Depression Scale-Anxiety; HADS-D, Hospital Anxiety and Depression Scale-Depression; 6MWT, 6-min walking test.