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Table 1 Demographic characteristics and echocardiographic measurements of the population

From: Validation of evaluating left ventricular diastolic function with estimated left atrial volume from anteroposterior diameter

Variable Derivation set (n = 276) Validation set (n = 276) P value
Age (years) 59.1 ± 10.8 57.7 ± 11.3 0.13
Female [n (%)] 114 (41.3%) 107 (38.8%) 0.52
Body surface area (m2) 1.76 ± 0.17 1.78 ± 0.18 0.40
Heart rate (bpm) 69.1 ± 12.5 69.7 ± 11.9 0.60
LV end-diastolic diameter (mm) 53.11 ± 8.74 52.99 ± 8.54 0.87
LV end-diastolic volume (mL) 94.00 (78.00–122.00) 97.00 (79.25–127.00) 0.69
LVEF (%) 56.69 ± 12.12 56.86 ± 12.13 0.87
Depressed LVEF [n (%)] 59 (21.4%) 60 (21.7%) 0.92
LAAP (mm) 39.44 ± 5.94 39.25 ± 6.21 0.72
LAAPI (mm/m2) 22.50 ± 3.68 22.20 ± 3.49 0.32
LAAPI > 23 mm/m2 [n (%)] 105 (38.0%) 89 (32.2%) 0.15
LAV (mL) 53.00 (43.00–66.83) 51.50 (42.00–67.00) 0.62
LAVI (mL/m2) 30.19 (24.16–36.73) 29.03 (23.59–37.13) 0.48
LAVI > 34 mL/m2 [n (%)] 94 (34.1%) 89 (32.2%) 0.65
Septal e′ velocity (cm/s) 6.09 ± 2.30 6.11 ± 2.49 0.92
Septal e′ velocity < 7 cm/s [n (%)] 168 (60.9%) 168 (60.9%) 1.00
Lateral e′ velocity (cm/s) 8.88 ± 3.31 8.70 ± 3.40 0.51
Lateral e′ velocity < 10 cm/s [n (%)] 163 (59.1%) 174 (63.0%) 0.36
Average E/e′ 10.96 ± 5.54 11.24 ± 5.74 0.56
Average E/e′ > 14 [n (%)] 51 (18.5%) 54 (19.6%) 0.78
TR velocity > 2.8 m/s [n (%)] 37/214 35/229 0.57
  1. Values shown are mean ± SD, median (interquartile range), or frequency (percentages)
  2. LV left ventricle, LVEF left ventricular ejection fraction, LAAP left atrial anteroposterior diameter, LAAPI left atrial anteroposterior diameter index, LAV left atrial volume, LAVI left atrial volume index, e′ early diastolic annular peak velocity, E early diastolic flow peak velocity, TR tricuspid regurgitation