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Table 1 Baseline characteristics and potential explanatory variables for cardiac volume reduction

From: Changes in cardiac volume determined with repeated enhanced 4DCT during chemoradiotherapy for esophageal cancer

Features Value P-value
Number of patients 46  
Age (years, Mean ± SD) 66.93 ± 9.76 0.281a
Gender (n, %)   0.107b
 Female 14(30.43)  
 Male 32(69.57)  
BMI (Mean ± SD) 22.63 ± 3.92 0.606a
Smoker (n, %)   0.410b
 Yes 21(45.65)  
 No 25(54.35)  
Hypertension (n, %)   0.309b
 Yes 6 (13.04)  
 No 40 (86.96)  
Tumor location (n)
 Upper 11  
 Middle 22  
 Lower 13  
Stage   0.137b
 Stage II 13  
 Stage III 33  
BP systolic at baseline (mmHg) 125.05 ± 15.98 0.881a
BP diastolic at baseline (mmHg) 75.66 ± 8.17 0.167a
HR at baseline (beats/min) 75.32 ± 6.23 0.412a
BP systolic (Mean ± SD) 17.36 ± 17.96 0.160a
BP diastolic (Mean ± SD) 4.32 ± 9.70 0.077a
HR (Mean ± SD) 4.64 ± 4.91 0.448a
  1. Abbreviations: BMI Body mass index, BP Blood pressure, HR Heart rate, P-value: the correlation between the potential explanatory variables and decline of heart volume. BP systolic:systolic blood pressure at the twentieth – the initial systolic blood pressure. BP diastolic: diastolic blood pressure at the twentieth – the initial diastolic blood pressure. HR: heart rate at the twentieth – the initial heart rate
  2. aPearson’s correlation analysis
  3. b one-way ANOVA analysis
  4. P ≥ 0.05 reflects that there was no correlation between the potential explanatory variables and heart volume change. Inversely,
  5. P < 0.05 reflects that the potential explanatory variables were strongly linked to heart volume change