Can 6-minute walk test predict severity of obstructive sleep apnea syndrome?

Table 3 6-MWT parameters in patients with moderate vs severe OSA

	Moderate OSA^a group	Severe OSA group	P value
6-MWD^b, m^c ± SD^d	555.45 ± 107.82	477.44 ± 275.65	0.173
6-MWD (%)^f ± SD	92.4% ± 10.41	75.91 ± 36.45	0.020
HR ^g,beats/min(from base-line) ± SD	30.09 ± 16.86	27.83 ± 19.26	0.733
HR^,beats/min after 6-MWT ± SD	101.27 ± 24.31	104.45 ± 29.88	0.753
SaO₂% ^h at end of 6-MWT ± SD	91 ± 4.97	90.22 ± 7.67	0.758
SaO₂% at end of 6-MWT from base line ±SD	2.09 ± 5.26	1 ± 5.99	0.596

Abbreviations: a OSA: obstructive sleep apnea, b 6-MWD: distance walked during the 6-MWT, c 6-MWD,m: is expressed in absolute (meter), d SD: Standard deviation, f 6-MWD: 6-MWD is as percentage predicted (%) values, g HR: Heart rate, h SaO ₂ : Oxygen saturation

ISSN: 2398-2683