Before (Narrative Summary Without Scientific Rigor):
“Multiple studies evaluated the effectiveness of Treatment A, with mixed results reported across different populations.”
After (Systematic Review With Statistical Evidence):
“A systematic review of 18 randomized controlled trials (n = 6,200) evaluating Treatment A demonstrated a statistically significant improvement in primary outcomes (SMD −0.58, 95% CI −0.41 to −0.75), with moderate heterogeneity (I² = 42%).”
