Before (Narrative Summary Without Quantitative Evidence):
“Several studies assessed the effectiveness of Treatment X, with inconsistent findings reported.”
After (Quantitative Meta-Analysis With Statistical Interpretation):
“A meta-analysis of 20 randomized controlled trials (n = 7,400) evaluating Treatment X demonstrated a significant pooled effect (SMD −0.72, 95% CI −0.54 to −0.90), with moderate heterogeneity (I² = 38%). Publication bias was not statistically significant (Egger’s test, p = 0.21).”
