Table1.

Characteristics of study population with chronic obstructive pulmonary disease (COPD).

Characteristics		No
No of patients		80
Age (mean±SD)		67.4±11.5
Weight (Kg)		66.3±12.3
FEV1 (%) (mean±SD)		49±25.7
FEV1 (L) (mean±SD)		1.676±0.579
Mean serum 25-OHD (ng/ml)		27.8±8.7
Smoking, No (%)		51 (78.8)
Opium addiction, No (%)		5 (6.5)
Aspirin users No, (%)		7 (8.1)
Hypertension No (%)		5 (6.5)
Inhaled bronchodilators, No (%)		44 (55.4)
Inhaled corticosteroids, No (%)		32 (40)
Staging No (%)	1	8 (10 )
	2	51 (63.8)
	3	20 (25)
	4	1. (1.3)