Table 4.

Inter-reviewer agreement of exercise oscillatory ventilation (EOV), final determination of EOV, and AUC for the relationship between ventilation dispersion index and the final EOV among select subgroups of patients with heart failure

Subgroup	n	Fleiss Kappa (95% CI)*	Final EOV, % (+/−/Indet)	AUC (95% CI)†
All Patients	243	0.429 (0.402, 0.456)	14/72/13	0.890 (0.828, 0.953)
Sex
Men	134	0.424 (0.388, 0.460)	18/66/16‡	0.948 (0.910, 0.987)
Women	109	0.419 (0.379, 0.459)	10/81/9	0.789 (0.649, 0.929)
Ejection Fraction (%)
≤40	144	0.477 (0.412, 0.482)	18/67/15‡	0.892 (0.814, 0.970)
>40	99	0.371 (0.330, 0.413)	9/81/10	0.910 (0.836, 0.984)
NYHA
I or II	152	0.418 (0.384, 0.451)	14/73/13	0.942 (0.901, 0.984)
III or IV	90	0.454 (0.409, 0.499)	16/72/12	0.835 (0.707, 0.963)
Peak VO2 (mL·kg−1·min−1)
<14.9	121	0.482 (0.443, 0.520)	13/78/9	0.874 (0.762, 0.986)
≥14.9	122	0.381 (0.344, 0.419)	16/67/17	0.909 (0.840, 0.976)

AUC, area under the receiver operator characteristics curve; CI, confidence interval; Indet, indeterminate; NYHA, New York Heart Association Class

^*Based on 30-s rolling interval averaged data.

^†Excluding indeterminate EOVs.

^‡P<0.05; comparison within subgroup.