Group | LVEF (%) | LVED (m) | BNP (ng/L) |
Observation group (n = 31) | 48.21 ± 5.65 | 57.05 ± 5.25 | 275.33 ± 54.25 |
Control group (n = 31) | 47.89 ± 5.82 | 56.34 ± 5.64 | 278.34 ± 55.64 |
t | 1.041 | 1.146 | 1.384 |
P | 0.102 | 0.113 | 0.135 |