eTable 4. Results concerning the usage time of Vorvida for the intervention group (IG) after t1 and t2*.

	n	M (in minutes)	SE	Mode	Range (in minutes)
t1	262	226.4	135.3	275	0–845
t2	262	257.6	176.8	240	0–1105

* The mean usage time of Vorvida was almost four hours at t1. and slightly above four hours at t2.

There was considerable variability in usage intensity. such that some participants did not use Vorvida at all. whereas one person used it for a total of more than 18 hours.

IG. intervention group; M. mean; n. number of participants; SE. standard error; t1 and t2. measuring timepoints after 3 and 6 months