highly significantP < 0.00001
The combined group demonstrated a substantially larger and highly significant positive effect (SMD = 2.02, 95% CI: 1.83 to 2.21; P < 0.00001).
The combined group demonstrated a substantially larger and highly significant positive effect (SMD = 2.02, 95% CI: 1.83 to 2.21; P < 0.00001).