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. 2020 Aug 5;7(1):16–25. doi: 10.1016/j.jacep.2020.07.016

Table 3.

Results From Proportional Hazards Cox Analysis of Association Between Time-Dependent Changes in QTc Following Concomitant HCQ/AZM Administration, and Con-Current Mortality

HR 95% CI p Value (2-sided)
Patients with complete QTc data from baseline, and days 1, 2 or 3, 4 or 5 (n = 137)
 Changes in QTc (time varying) 1.004 0.996−1.012 0.367
 Baseline QTc (from ECG) 1.014 0.998−1.031 0.094
 Days from admission to combo administration 1.068 0.947−1.204 0.283
 Age at admission 1.087 1.045−1.131 <0.0001
 Male 1.295 0.613−2.736 0.499
 BMI 1.065 1.003−1.130 0.039
 Race (White or Caucasian) 0.617 0.270−1.410 0.252
All patients (N = 415)
 Changes in QTc (time varying) 0.998 0.992−1.005 0.607
 Baseline QTc (from ECG) 1.004 0.994−1.014 0.457
 Days from admission to combo administration 1.081 0.996−1.173 0.064
 Age at admission 1.064 1.042−1.086 <0.0001
 Male 0.818 0.526−1.271 0.371
 BMI 1.017 0.993−1.040 0.164
 Race (White or Caucasian) 0.962 0.606−1.525 0.868

ECG = electrocardiography; HR = hazard ratio; other abbreviations as in Tables 1 and 2.