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Table 3 Variables collected in the CAFR study and missing rate for each key variables

From: Rationale and design of the Chinese Atrial Fibrillation Registry Study

Variables Number of variables currently collected Missing rate (%)
Age or Date of Birth 17467 0 %
Sex 17467 0 %
Date of initial register 17467 0 %
Type of AF 17340 0.73 %
Systolic blood pressure 17291 1.01 %
Height 15845 9.29 %
Body weight 15964 8.60 %
History of alcohol-drinking 17250 1.24 %
History of hypertension 17331 0.78 %
History of diabetes mellitus 17331 0.78 %
History of hyperlipidemia 17288 1.02 %
History of heart failure 17331 0.78 %
History of myocardial infarction 17328 0.80 %
History of coronary artery disease 17330 0.78 %
Signs of heart failure 17329 0.79 %
Hemoglobin level 13552 22.4 %
Creatinine level 14264 18.3 %
Fasting blood glucose 13718 21.4 %
Total cholesterol 13587 22.2 %
Is thyroid function within normal range 12367 29.2 %
Left ventricular ejection fraction 13568 22.3 %
History of direct current cardioversion 17268 1.14 %
History of radiofrequency ablation 17332 0.77 %
History of ischemic stroke/transient ischemia attach/ peripheral arterial thromboembolism 17338 0.74 %
History of intracranial hemorrhage/other major bleeding 17335 0.76 %
Use antiarrhythmic agents 17334 0.76 %
Use ventricular rate control agents 17332 0.77 %
use antithrombotic agents 17333 0.77 %
Warfarin 17281 1.06 %
Use Angiotensin converting enzyme inhibitors/angiotensin receptor blockers 17281 1.06 %
Use Statins 17283 1.05 %