a strong trendP = 0.16
When melatonin was taken orally beforehand, there were no significant effects on LVEF, but there was a strong trend to promote LVEF (SMD: 0.60; 95% CI: −0.24 to 1.43; P = 0.16; and I 2 = 79.4%, Figure 4(b) ).
When melatonin was taken orally beforehand, there were no significant effects on LVEF, but there was a strong trend to promote LVEF (SMD: 0.60; 95% CI: −0.24 to 1.43; P = 0.16; and I 2 = 79.4%, Figure 4(b) ).
The results suggested that melatonin intervention had no significant effects on LVEF, LVEDV, and LVESV compared to the control groups but showed a trend to enhance LVEF (SMD: 0.11; 95% CI: −0.29 to 0.52; P = 0.58; and I 2 = 78.4%), LVEDV (SMD: 0.13; 95% CI: −0.08 to 0.34; P = 0.22; and I 2 = 0%), and LVESV (SMD: 0.20; 95% CI: −0.03 to 0.43; P = 0.095; and I 2 = 18.1%) in Figure 3(a) .