Table 2.

Onset difference between manual detections considering reliable breaths less than 150 ms. Percentage of cycles removed.

COPD	Differences between Scores (ms)	Discarded Cycles (%)
1	−6 ± 77	34.2
2	−32 ± 73	39.3
3	15 ± 74	27.1
4	10 ± 68	21.0
5	−10 ± 70	40.0
6	−13 ± 67	24.4
7	6 ± 81	45.0
8	33 ± 56	5.4
9	16 ± 46	2.2
Mean ± SD	5 ± 69	26.5 ± 15.1