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Table 4 Predictors of limited 6 min walk test

From: Left ventricular markers of global dyssynchrony predict limited exercise capacity in heart failure, but not in patients with preserved ejection fraction

Variable Odds ratio (95% CI) P value (<)
Clinical univariate predictors
Hemoglobin 1.020 (1.000-1.041) 0.047
Heart rate 1.027 (0.999-1.056) 0.06
NYHA class 1.535 (0.878-2.685) 0.13
Gender 1.502 (0.734-3.073) 0.27
Creatinine 1.003 (0.995-1.012) 0.47
Urea 1.030 (0.950-1.117) 0.47
Body-mass index 1.028 (0.947-1.117) 0.51
Diabetes mellitus 0.847 (0.394-1.820) 0.67
Age 1.004 (0.973-1.036) 0.81
Echocardiographic univariate predictors
T-IVT 0.743 (0.646-0.855) <0.001
Tei index 0.038 (0.007-0.219) <0.001
IVRT 0.974 (0.957-0.992) 0.005
LV EF 1.049 (1.013-1.087) 0.007
E/A ratio 1.526 (1.035-2.251) 0.03
LV EDD 0.714 (0.483-1.055) 0.09
Right long axis amplitude 1.832 (0.885-3.791) 0.11
LV ESD 0.781 (0.562-1.086) 0.14
Left atrium 1.272 (0.763-2.120) 0.36
E wave deceleration time 0.997 (0.991-1.003) 0.39
E/e’ ratio 1.036 (0.943-1.140) 0.46
Lateral long axis amplitude 0.708 (0.197-2.554) 0.59
Septal long axis amplitude 0.794 (0.857-3.404) 0.76
Multivariate predictors
T-IVT 1.257 (1.071-1.476) 0.005
LV Ejection Fraction 0.947 (0.903-0.993) 0.02
E/A ratio 0.553 (0.315-0.972) 0.04
Haemoglobin 0.974 (0.947-1.001) 0.06
Gender 0.535 (0.188-1.523) 0.24
Age 1.022 (0.975-1.072) 0.37
  1. LV left ventricle, A atrial diastolic velocity, E early diastolic filling velocity, EDD end-diastolic dimension, ESD end-systolic dimension, T-IVT total isovolumic time, IVRT isovolumic relaxation time, s’ systolic myocardial velocity, e’ early diastolic myocardial velocity, a’ late diastolic myocardial velocity.