borderline significanceP = 0.051
The changes in IL-1ra levels and IL-1ra and IL-1ß gene expression showed an inverse correlation with the changes in RMSSD, LF power, and HF power and a positive correlation with LF/HF ratio (all P<0.05), except for three associations showing borderline significance (ΔIL-1ra gene expression vs ΔHF: P = 0.051, ΔIL-1ß gene expression vs ΔLF: P = 0.087, and ΔIL-1ß gene expression vs ΔHF: P = 0.078).