Table 1. Characteristics of CAP patients

Characteristics	n (%)	p-value
Gender
Female	128 (37.5)	p<0.001
Male	213 (62.5)
Age
16–60 years	92 (27.0)	p<0.001
>60 years	249 (73.0)
CAP
With COPD	91 (26.7)	p<0.001
Without COPD	250 (73.3)
Patients with positive rate
By PCR technique	231 (67.7)	p<0.001
By culture technique	157 (46.0)

p-values were obtained by Chi-square test
CAP, community-acquired pneumonia; COPD, chronic obstructive pulmonary disease.