Table 4. Comparison between COPD without CAP Group and COPD with CAP Group as regard readmission.

-	COPD without CAP Group (N=100)		COPD with CAP Group (N=90)		Chi square test
	N	%	N	%	p value
Readmission	27	27.0%	47	52.2%	0.003*

N: number; ;*: p < 0.05: Significant (S).