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Table 2 Baseline characteristics of the females 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, females (n = 200) Derivation cohort (n = 100)a Validation cohort (n = 100)a p-value
Age (years) 52 ± 18 49 ± 17 0.21
Female sex, n (%) 100 (100%) 100 (100%) 1.0
Height (cm) 165 ± 8 167 ± 7 0.17
Weight (kg) 69 ± 14 70 ± 16 0.89
BSA (m2) 1.8 ± 0.2 1.8 ± 0.2 0.77
LVEDV (ml) 157 ± 52 159 ± 49 0.48
LVEDVI (ml/m2) 89 ± 28 89 ± 26 0.47
LVESV (ml) 91 ± 57 88 ± 57 0.81
LVESVI (ml/m2) 47 ± 28 46 ± 29 0.95
LVSV (ml) 78 ± 21 83 ± 20 0.65
LVSVI (ml/m2) 45 ± 11 47 ± 11 0.16
LVEF (%) 53 ± 12 54 ± 11 0.44
LVM (g) 110 ± 26 112 ± 42 0.41
LVMI (g/m2) 62 ± 14 64 ± 22 0.49
ECV (%) 29 ± 4 29 ± 3 0.72
Hematocrit (%) 38 ± 4 38 ± 5 0.93
Septal wall thickness (mm) 9 ± 2 9 ± 3 0.45
Myocardial T1 (ms) 1046 ± 41 1040 ± 37 0.29
Mean blood R1 (ms−1) 0.00062 ± 0.00003 0.00062 ± 0.00003 0.58
Mean blood R1* (ms−1) 0.00059 ± 0.00004 0.00054 ± 0.00005 0.95
  1. Characteristics are given as means ± standard deviations, or percentages as appropriate. p-values refer to comparison of mean values of derivation and validation cohort. aData missing for LV volumes, EF and mass (n = 2), and ECV (n = 4) in the derivation cohort. Data missing for ECV (n = 2) in the validation cohort