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Table 2 Linear regression analysis showing impact of demographic parameters on LV myocardial thickness and mass separately for each variable

From: Cardiovascular magnetic resonance normal values in children for biventricular wall thickness and mass

Variable Regression coefficient Standard error P value
Myocardial thickness, LV base
 Age 0.20 0.021  < 2 × 10–16
 Men 0.55 0.15 0.00036
 Body surface area 2.50 0.15  < 2 × 10–16
 Body height 0.040 0.0032  < 2 × 10–16
 Body weight 0.044 0.0029  < 2 × 10–16
 Average heart rate − 0.011 0.0046 0.018
Myocardial thickness, LV mid-cavity
 Age 0.17 0.024 1.2 × 10–11
 Men 0.52 0.16 0.0012
 Body surface area 2.35 0.19  < 2 × 10–16
 Body height 0.037 0.0037  < 2 × 10–16
 Body weight 0.041 0.0035  < 2 × 10–16
 Average heart rate − 0.011 0.0049 0.025
Myocardial thickness, LV apex
 Age 0.13 0.019 6.9 × 10–11
 Men 0.35 0.12 0.0049
 Body surface area 1.66 0.16  < 2 × 10–16
 Body height 0.027 0.0030 5.7 × 10–16
 Body weight 0.029 0.0029  < 2 × 10–16
 Average heart rate − 0.0078 0.0038 0.040
Myocardial mass
 Age 6.58 0.54  < 2 × 10–16
 Men 16.26 4.33 0.00024
 Body surface area 78.73 3.56  < 2 × 10–16
 Body height 1.33 0.08  < 2 × 10–16
 Body weight 1.36 0.076  < 2 × 10–16
 Average heart rate − 0.63 0.13 1.7 × 10–6