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Table 1 Factors assessed in ESRD patients, DMMS Wave 2, 1996 only

From: Atrial fibrillation in chronic dialysis patients in the United states: risk factors for hospitalization and mortality

Factor N (%) or mean ± SD Missing (%) Univariate association with AFIB
Demographic Factors    
N 3374   
Female 1572 (46.6) 0  
African American 933 (27.7) 0 0.41 (0.24–0.69)
Mean Age (Years) 58.9 ± 15.9 15 (0.4)  
   Quartiles of Age (vs. <48) 781   
   48–60 837   3.54 (1.17–10.76)
   61–71 867   6.01 (2.06–17.52)
   >71 874   15.26 (5.46–42.66)
Cardiovascular Factors    
History of Coronary Heart Disease 1091 (34.9) 250 (7.4) 2.35 (1.60–3.44)
History of Congestive Heart Failure 1150 (36.2) 199 (5.9) 1.80 (1.24–2.61)
Chronic Obstructive Lung Disease 271 (8.6) 229 (6.8) 1.93 (1.13–3.40)
Stroke 336 (10.5) 164 (4.9) 1.69 (1.03–2.81)
Previous CABG 325 (9.6) 118 (3.5) 1.87 (1.14–3.06)
Previous PTCA 174 (5.2) 203 (6.0) 2.43 (1.36–4.35)
Previous coronary angiography 352 (10.4) 302 (9.0) 2.40 (1.51–3.81)
   2nd quartile of pre-dialysis SBP (130–146 mm Hg) vs. 1st (<130 mm Hg)    0.49 (0.25–0.99)
CKD specific factors    
Ever Transplanted (Yes/No) 460 (13.6) NA 0.15 (0.05–0.48)
Peritoneal Dialysis 1662 (49.8) 37 (1.1) 0.59 (0.40–0.86)
Medications    
Aspirin (Yes) 628 (18.6) NA  
Coumadin 198 (5.9) NA  
Beta-blockers   NA  
   Cardioselective 486 (14.4) NA  
   Non-cardioselective 177 (5.2) NA  
Digoxin 142 (4.2) NA 3.72 (2.17–6.38)
Amiodarone 19 (0.6) NA  
Calcium Channel Blockers   NA  
   Non-dihyrdopyridine 439 (13.0) NA  
   Dihydropyridine 1371 (40.6) NA  
Statins 310 (9.2) NA  
ACE Inhibitors 772 (22.9) NA  
Levothyroxine 330 (9.8) NA  
  1. In column one, data given as the number (% of total) or mean ± one standard deviation of patients. Univariate odds ratios (with significance testing by Chi Square) are the strength of the association of a disease or factor with time to hospitalization for atrial fibrillation (AFIB, ICD9 discharge code 427.31.x), with 1.0 being neutral.
  2. SBP = systolic blood pressure, DBP = diastolic blood pressure, both in mm/Hg, obtained as the mean of three successive blood pressures. CABG = coronary artery bypass graft, PTca = percutaneous transluminal coronary angioplasty LVH = left ventricular hypertrophy, ECHO = echocardiography, EKG = electrocardiogram. Statin = HMG-CoA reductase inhibitor, NA = not available since variable was constructed from multiple variables (15 in the case of medications). Medication use was assessed at day 60 after initiation of dialysis. Comorbidities such as coronary heart disease and congestive heart failure refer to a history of these conditions within ten years prior to the study period. Selective and non-selective beta-blocker use does not total since some patients were on both agents Values for continuous variables more than 3 SD above and below the median were excluded.