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Table 3 Univariate mixed effects logistic regression model for factors that are associated with overall discordance

From: On-call transthoracic echocardiographic interpretation by first year cardiology fellows: comparison with attending cardiologists

  OR 95% CI P value
Patient characteristics
 Age 1.00 (0.99, 1.01) 0.89
 Female Sex 1.02 (0.70, 1.49) 0.92
 Body Mass Index 0.98 (0.95, 1.01) 0.16
 Heart Rate 1.01 (1.00, 1.02) 0.07
 Systolic BP    0.05
  Systolic BP < 90 0.68 (0.37, 1.26) 0.22
  90 ≤ Systolic BP < 125 REF REF REF
  Systolic BP ≥ 125 0.60 (0.38, 0.93) 0.02
Diastolic BP 1.00 (0.99, 1.01) 0.86
Death during hospitalization 1.36 (0.84, 2.19) 0.21
Fellow characteristics
 Number of TTEs performed 0.98 (0.96, 1.01) 0.15
 Study Year    0.09
  2/2013–8/2013 1.32 (0.71, 2.46) 0.38
  9/2013–8/2014 0.62 (0.34, 1.14) 0.13
  9/2014–9/2015 0.79 (0.45, 1.38) 0.41
  9/2015–8/2016 1.25 (0.65, 2.39) 0.51
  9/2016–8/2017 REF REF REF
 Month of Fellowship
(September to February vs. March to August)
0.89 (0.61, 1.31) 0.56
 Time of TTE (nighttime vs. daytime) 0.83 (0.50, 1.38) 0.47
TTE characteristics
 Primary indication    0.0003
  LV Function vs. Effusion 2.40 (1.53, 3.76) 0.0002
  Effusion REF REF REF
  Other vs. Effusion 1.23 (0.70, 2.15) 0.47
 Duration of study acquisition 1.02 (1.01, 1.03) 0.003
 Location of TTE    0.67
  ICU or PACU 1.13 (0.70, 1.84) 0.61
  Catheterization or EP Lab 0.74 (0.20, 2.80) 0.66
  Inpatient 0.86 (0.52, 1.43) 0.57
  Emergency Department REF REF REF
 Post Procedure TTE 0.58 (0.36, 0.92) 0.02
 Suboptimal Image Quality 1.15 (0.78, 1.69) 0.48
  1. Random effects for fellows and attendings were used. Abbreviations: BP Blood pressure, EP Electrophysiology, ICU intensive care unit, PACU Post-anesthesia care unit, TTE Transthoracic echocardiogram