Table 1: Characteristics of the patients between AECOPD with and without CAP.

- COPD without CAP Group
(No,=100)
COPD with CAP Group
(No,=90)
Chi square test/
p value
Age Mean ±SD 64 ±8 62±12. 0.098
Pack/yr Mean ±SD 88.90±38.60 87.84±41.73 0.857
Length of hospital stay(days) Mean ±SD 7.57±2.24 11.30±3.23 <0.001**
COPD Assessment Test (CAT) Mean± SD 28.95±6.01 28.56±5.72 0.647
mMRC Dyspnea scale Mean± SD 2.91±0.64 2.95±0.48 0.592
- No % No % Independent t test
p value
LTOT No 87 87.0% 76 84.4% 0.614
Yes 13 13.0% 14 15.6%
Comorbidities Congestive
heart failure
20 20.0% 18 20.0% 0.057
Chronic
kidney disease
5 5.0% 10 11.1%
DM 25 25.0% 26 28.9%
No 50 50.0% 36 40.0%
Medication
Before Admission
LCS 28 28.0% 8 9.1% 0.123
LABA 18 18.0% 5 5.7%
SABA 2 2.0% 0 0.0%
LAMA 10 10.0% 3 3.4%
LCS+ LABA 42 42.0% 30 33.3%

AECOPD: acute exacerbations of chronic obstructive pulmonary disease; CAP: community-acquired pneumonia; CAT: chronic obstructive pulmonary disease assessment test;; mMRC: modified Medical Research Council; n: number; SD: standard deviation; LTOT: long term oxygen therapy; ;**: P < 0.01: Highly significant (HS).