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Table 3 Baseline characteristics of the males in the derivation and validation cohorts

From: Blood correction reduces variability and gender differences in native myocardial T1 values at 1.5 T cardiovascular magnetic resonance – a derivation/validation approach

Characteristic, males (n = 200) Derivation cohort (n = 100) Validation cohort (n = 100) p-value
Age (years) 49 ± 18 47 ± 18 0.40
Female sex, n (%) 0 (0%) 0 (0%) 1.0
Height (cm) 181 ± 14 180 ± 8 0.81
Weight (kg) 86 ± 14 85 ± 16 0.84
BSA (m2) 2.0 ± 0.3 2.1 ± 0.2 0.77
LVEDV (ml) 204 ± 64 207 ± 68 0.67
LVEDVI (ml/m2) 99 ± 29 100 ± 36 0.96
LVESV (ml) 103 ± 62 101 ± 64 0.71
LVESVI (ml/m2) 50 ± 29 49 ± 34 0.56
LVSV (ml) 99 ± 27 106 ± 24 0.047*
LVSVI (ml/m2) 49 ± 16 52 ± 11 0.02*
LVEF (%) 51 ± 12 54 ± 11 0.06
LVM (g) 166 ± 45 162 ± 51 1.0
LVMI (g/m2) 80 ± 20 80 ± 21 0.78
ECV (%) 27 ± 3 27 ± 4 0.60
Hematocrit (%) 42 ± 4 43 ± 4 0.41
Septal wall thickness (mm) 11 ± 2 11 ± 2 0.58
Myocardial T1 (ms) 1015 ± 39 1005 ± 46 0.10
Mean blood R1 (ms−1) 0.00066 ± 0.00004 0.00066 ± 0.00003 0.57
Mean blood R1* (ms−1) 0.00063 ± 0.00004 0.00063 ± 0.00004 0.98
  1. Characteristics are given as mean ± standard deviations, or percentages as appropriate. p-values refer to comparison of derivation and validation cohort. *marks significant results