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

 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

 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

 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