Table 3.

Effect of metformin on polyp loading at different segments

Segment		Number of polyps at baseline	Number of polyps at 1 year	p value
Descending duodenum	Test group	54.75 ± 12.98	36.63 ± 14.82	< 0.001
	Placebo	56.13 ± 34.30	68.88 ± 37.35	0.013
	p value	0.943	0.160
Carbon nanoparticles tattooing and Post-surgical residual areas	Test group	134.72 ± 58.46	62.89 ± 29.73	< 0.001
	Placebo	88.33 ± 51.85	118.92 ± 65.69	0.066
	p value	0.140	0.041