Table 4 : Distribution of COPD Severity based on GOLD spirometry and BODE index criteria among
COPD patients attending chest clinic of JUMC from May 18 to August 18, 2017 G.C, n=80.

X2- Chi square,*-statistical significance, R-Spearman correlation coefficient indicating the association between
two ordinal variables (severity of COPD by GOLD and BODE), K- kappa coefficient the measure of agreement of
two ordinal variables in grading the severity of COPD as substantial agreement [23].

Reta et al.Pulmonology and Respiratory Research  2018 6:1DOI : 10.7243/2053-6739-6-1