Baseline characteristics of the 405 patients with a diagnosis of chronic obstructive pulmonary disease (COPD), divided in those with a heart rate of 80 bpm or lower versus those with a heart rate above 80 bpm.

Values are means (SD) for continuous variables, absolute numbers (percentages) for dichotomous variables and median (25–75 percentile) for skewed distributed variables.SD: standard deviation, N: number, COPD: chronic obstructive pulmonary disease, FEV1: forced expiratory volume in 1 second, FVC: forced vital capacity, bpm: beats per minute, GOLD: global initiative for chronic obstructive lung disease, ms: milliseconds.1Body mass index: 4 missing, mean RR: 2 missing.2Including prior myocardial infarction, angina pectoris, coronary artery bypass grafting, percutaneous coronary intervention, atrial fibrillation, supraventricular tachycardia, ventricular fibrillation, ventricular tachycardia, other cardiac arrhythmias, stroke, transient cerebral ischemic attack, peripheral arterial disease, or aortic aneurysm.3Including diuretics, digoxin, calcium channel-antagonists, anti-arrhythmics, platelet aggregation inhibitors, ACE inhibitors, angiotensin II receptor blockers, nitrates and statins.Baseline characteristics of the 405 patients with a diagnosis of chronic obstructive pulmonary disease (COPD), divided in those with a heart rate of 80 bpm or lower versus those with a heart rate above 80 bpm.