Table 2.

Summary of respiratory phase pattern frequencies across all bolus trials.

Respiratory phase pattern	Overall frequency (boluses)	%
Expiration–expiration (E–E)	1301	92.7
Inspiration–expiration (I–E)	43	3.1
Expiration–inspiration (E–I)	57	4.1
Inspiration–inspiration(I–I)	3	0.2
Total	1404	100.0