Table 1: Comparing the baseline characteristics between patients' subgroups.

HF + RF HF RF Chi-square test
No. % No. % No. % X2 P-value
Sex Female 5 16.70% 4 13.30% 14 46.70% 10.629 0.005
Male 25 83.30% 26 86.70% 16 53.30%
Age (years)*

Mean ± SD

Range

57.2 ± 8.1

(for all)

60.37 ± 6.41

48 - 70

55.63 ± 9.31

34 - 72

55.67 ± 9.74

38 - 72

2.997

0.055

NYHA class 1 1 3.30% 0 0.00% 30 100.00% 97.165 < 0.001
2 16 53.30% 26 86.70% 0 0.00%
3 11 36.70% 4 13.30% 0 0.00%
4 2 6.70% 0 0.00% 0 0.00%
DM 15 50.00% 3 10.00% 17 56.70% 16.08 < 0.001
Hypertension 13 43.30% 13 43.30% 15 50.00% 0.35 0.83
Smoking 19 63.30% 20 66.70% 16 53.30% 1.21 0.54
Dyslipidemia 4 13.30% 0 0.00% 9 30.00% 10.96 0.004