%0 Journal Article %T Relation of serum Vitamin D level and pulmonary punction in COPD patients %J Razi Journal of Medical Sciences %V 22 %N 133 %U http://rjms.iums.ac.ir/article-1-3897-en.html %R %D 2015 %K Serum vitamin D level, COPD, Spirometry, %X Background: The aim of this study was to determine the mean of the serum level of vitamin D in chronic obstructive pulmonary disease (COPD) patients referred to Rasoul-E-Akram Hospital, Tehran, Iran in 2010-11. Methods: In this sectional study 56 patients with COPD were recruited. The COPD condition was confirmed in these patients following spirometry. Serum vitamin D level of all patients was measured and categorized according to the 5 stages of 0,1,2,3, and 4 suggested by Global Initiative on Obstructive Lung Disease (GOLD). The data were analyzed using SPSS v. 18. Results: The mean age of patients was 68.1 ± 10.3. About%76 of patients were men. The study indicated that%85.1 of the patients were suffering from vitamin D deficiency with the level less than 30 mg /dl. Also, it was indicated that there is a direct and linear relation between serum vitamin D level and forced expiratory volume in one second (FEV1) volume(p= 0.03), (B= 0.4). Conclusion: The study demonstrated that vitamin D deficiency in COPD patients is highly prevalent. Thus, diagnostic examinations of vitamin D deficiency and on time treatment can prevent from many related problems in these patients. %> http://rjms.iums.ac.ir/article-1-3897-en.pdf %P 35-40 %& 35 %! %9 Research %L A-10-1-1679 %+ %G eng %@ 2228-7043 %[ 2015