Table 2 Data characteristics and model performance.

From: Estimation of biological heart age using cardiovascular magnetic resonance radiomics

Matrices

Women

Men

Number of participants

15,920

14,076

Age (years)

62.7 (± 7.3)

63.8 (± 7.6)

Age range

45–82

45–82

Number of features

254

254

Mean absolute error

4.95

5.48

R squared

0.31

0.22

Correlation of chronological age with predicted age

0.90

0.91

Correlation of heart age delta with actual age

− 0.01

− 0.01