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Table 1 Clinical characteristics of the 70 patients included in the study

From: Cardiac autonomic function in patients with acute exacerbation of chronic obstructive pulmonary disease with and without ventricular tachycardia

Variable Non-VT group (n = 48) VT group (n = 22) P
Gender (male) 31 (64.5 %) 15 (68.2 %) 0.77
Age (years) 61.2 ± 11.4 60.6 ± 11.8 0.86
BUN (mmol/L) 6.0 ± 1.5 6.1 ± 1.2 0.84
Cr (μmol/L) 76.3 ± 15.8 77.1 ± 15.2 0.82
FBG (mmol/L) 5.0 ± 0.9 5.1 ± 0.8 0.79
TC (mmol/L) 4.8 ± 0.6 4.7 ± 0.7 0.83
LVEF (%) 59.8 ± 6.4 58.7 ± 6.5 0.87
β2 agonist use 45 (93.8 %) 20 (90.9 %) 1.00
Anticholinergic use 40 (83.3 %) 19 (86.4 %) 1.00
Hormone replacement therapy 36 (75.0 %) 17 (77.3 %) 0.84
Calcium antagonist use 15 (31.2 %) 10 (45.5 %) 0.25
Amiodarone use 5 (10.4 %) 15 (68.2 %) <0.05
Smoker 10 (20.8 %) 6 (27.3 %) 0.64
PH 7.40 ± 0.05 7.41 ± 0.08 0.13
PaO2(mmHg) 60.5 ± 5.9 59.8 ± 5.3 0.73
PaCO2(mmHg) 49.4 ± 5.6 50.5 ± 5.9 0.43
Serum K+(mmol/L) 4.2 ± 0.4 4.1 ± 0.4 0.25
Serum Na + (mmol/L) 138.8 ± 3.3 139.7 ± 3.2 0.12
Serum Cl-(mmol/L) 99.8 ± 2.0 98.8 ± 2.2 0.06
mMRC Grade 0 10 (20.8 %) 5 (22.7 %) 0.88
mMRC Grade 1 15 (31.2 %) 6 (27.3 %) 0.80
mMRC Grade 2 12 (25 %) 5 (22.7 %) 0.87
mMRC Grade 3 8 (16.7 %) 4 (18.2 %) 0.89
mMRC Grade 4 3 (6.3 %) 2 (9.1 %) 0.69
  1. Data presented as n (%) or mean ± standard deviation
  2. BUN blood urea nitrogen, Cr serum creatinine, FBG fasting blood glucose, LVEF left ventricular ejection fraction, TC serum total cholesterol, VT ventricular tachycardia, mMRC modified British Medical Research Council questionnaire