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Table 1 Comparison of left ventricular structure and function in tertile age groups

From: The aging effect: The relationship of twist to structural and mechanical remodeling of the left ventricle in a normal population using HARP CMRI

  Group 1: 37.8 ± 6.5 years Group 2: 51.3 ± 3.1 years Group 3: 72.0 ± 8.9 years  
  Mean ± SD Mean ± SD Mean ± SD p value
LVEDV 137.3 ± 48.1 126.8 ± 49.8 126.7 ± 36.9 0.81
LVESV 70.8 ± 17.5 63.5 ± 25.4 50.9 ± 19.4 0.06
LVEF 50.2 ± 13.8 53.1 ± 11.8 60.7 ± 6.1 0.05
SBP 114 ± 9 126 ± 15 136 ± 18 <0.01
PP 46 ± 7 53 ± 12 64 ± 13 <0.01
LV Mass 80.3 ± 23.0 80.9 ± 34.6 82.9 ± 27.8 0.97
LV Mass/LVESV 1.2 ± 0.3 1.4 ± 0.6 1.7 ± 0.4 0.01
Twist -13.1 ± 3.5 -11.4 ± 3.6 -16.1 ± 3.4 0.02
Systolic strain rate -98.5 ± 11.4 -93.4 ± 13.7 -94.5 ± 12.5 0.41
Early diastolic strain rate 232.9 ± 89.7 214.2 ± 105.9 211.2 ± 95.2 0.82
Systolic strain -18.8 ± 2.1 -17.7 ± 2.2 -17.6 ± 1.5 0.13