Table 1.

Study site characteristics

Research site identifier	Site A	Site B	Site C	Site D
Telehealth deployment
Year of introduction	2007	2009	2006	2010
Equipment purchased (P) or leased (L)	P	P	L	P
No. of telehealth units available for usea	165	79	n/a	40
No. of telehealth units in useb	104	39	200	34
Referral routes into telehealth
Community matrons	✓	✓	✓	✓
Case managers	✓			✓
Specialist respiratory nurses	✓	✓	✓
Specialist heart failure nurses	✓	✓	✓
GPs	✓
Telehealth stakeholders
NHS community healthcare provider	✓		✓	✓
NHS hospital trust	✓			✓
Clinical commissioning group		✓	✓
Equipment manufacturer	✓	✓	✓	✓
Local authority	✓	✓	✓
Community interest company		✓	✓
Private company		✓	✓

^aEstimates from case study data

^bAt end of data collection period in phase one