Table 3.

Incidence of total polyps and adenomas 1 year after the start of treatment.

	Metformin	Placebo	p-value
Incidence of total polyp (95%CI) Risk ratio (95%CI)	27/71 (38.0%) (26.7–49.3) 0.674 (0.466–0.974)	35/62 (56.5%) (44.1–68.8) 1(reference)	0.034
Incidence of total adenomas (95%CI) Risk ratio (95%CI)	22/71 (30.6%) (19.9–41.2) 0.600 (0.393–0.916)	32/62 (51.6%) (39.2–64.1) 1 (reference)	0.016

This table is reproduced from (53) with permission.

CI, confidence interval; IQR, interquartile range.