|
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
|
- 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
