Table 2.

Plasma orexin-A levels in weight-based group.

	Control subjects			Patients with COPD
	n	orexin-A (pg/mL)		n	orexin-A (pg/mL)		P
		median	range		median	range
UW	5	9.00	8.00–18.69	10	36.32	22.71–44.88	.000
NW	14	15.44	5.96–33.61	23	48.51	14.55–95.86	.000
OW	3	20.55	10.18–23.62	7	56.00	45.26–101.26	.001