Effect of Lianhuaqingwen Capsules on Airway Inflammation in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease

Table 1

Baseline characteristics of participants in both study groups.

	LHQW group; (𝑛=50)	Conventional group; (𝑛=50)	Statistical significance
Age, years (mean ± SD)	70.62±10.19	72.60±9.54	NS
Gender (male, %)	44 (88%)	42 (84%)	NS
BMI, Kg/m^2 (mean ± SD)	23.35±3.66	22.90±3.66	NS
Smoking history, pack years (mean ± SD)	765.19±545.25	795.71±500.39	NS
FEV1%Pred, % (mean ± SD)	50.32±16.05	47.60±18.78	NS
FEV1/FVC, % (mean ± SD)	65.84±11.10	62.20±18.43	NS
PO2, mmHg (mean ± SD)	76.64±15.22	72.91±16.58	NS
PCO2, mmHg (mean ± SD)	43.40±5.53	45.35±8.70	NS
SPO2, % (mean ± SD)	94.55±10.92	91.04±9.56	NS

NS: nonsignificant difference between the two groups, 𝑃 value ≥0.05. SD: standard deviation, BMI: body mass index = weight (kg)/height² (m²), FEV₁%Pred: forced expiration volume in one second %predicted FEV₁, FEV₁/FVC: forced expiratory volume in one second/forced vital capacity, PO₂: partial pressure of oxygen, PCO₂: partial pressure of carbon dioxide, SPO₂: oxygen saturation, 1 mmHg = 0.133 kpa.