Table 2.

Levels of C-reactive protein, prealbumin, and leptin in various chronic obstructive pulmonary disease severity categories adjusted for body mass index

Variables	Overall (n=102)	Mean±SE			P	P moderate with severe	Moderate with very severe	Severe with very severe
		Moderate	Severe	Very severe
CRP (mg/dl)
Unadjusted	3.10±0.38	0.60±0.096	2.16±0.39	4.15±0.463	<0.001	0.001	0.001	0.001
Adjusted		0.37±0.55	2.17±0.36	4.274±0.40	<0.001
Prealbumin (mg/dl)
Unadjusted	12.01±0.53	15.73±0.92	10.95±0.85	11.15±0.79	0.002	0.001	0.001	0.67
Adjusted		16.07±1.17	10.93±0.76	10.935±0.76	<0.001
Leptin (ng/mL)
Unadjusted	8.08±1.34	13.81±3.88	8.45±2.25	4.40±1.06	0.008	0.053	0.001	0.18
Adjusted		8.600±2.587	8.640±1.694	7.126±1.897	0.823

Ref range: CRP: (0-0.3 mg/dl), prealbumin: (20.0-40.0 mg/dl), Leptin: (3.8-7.4 ng/ml). CRP: C-reactive protein, SE: Standard error