الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Chronic obstructive pulmonary disease (COPD) is a preventable and
treatable disease with some significant extra-pulmonary effects that may
contribute to the severity of the disease. Chronic obstructive pulmonary
disease (COPD) is defined by progressive, irreversible airflow limitation with
inflammatory response of the lung, usually to cigarette smoke. COPD
involves several systemic features, particularly in patients with severe disease,
which have a major impact on survival and comorbid diseases However,
COPD is a heterogeneous disease in terms of clinical, physiological, and
pathological presentation. The aim of the study is to investigate whether
(BMI) and fat-free mass index (FFMI) could be related to parameters
expressing airflow obstruction Severity. As regards the whole sample, there
was a statistically significant positive (direct) correlation between FFMI
between mild , moderate, sever and very sever COPD groups but As regards
BMI there was no statistically significant difference between mild , moderate,
sever and very sever COPD groups.
Also there was no statistically significant difference between BMI and
blood gas variables.(oxygen saturation,PO2,PCO2) in contrast to FFMI There
was statistically significant decrease in oxygen saturation ,PO2with decrease
in FFMI , and statistically significant increase in PCO2 with decrease in
FFMI.