Increased colorectal cancer risk in prediabetes: A meta-analysis

Figure 1 The flowchart depicts the process of database search and study inclusion. CRC: Colorectal cancer.

Figure 2 Forest plots of the subgroup analyses of the association between prediabetes and the risk of colorectal cancer. A: Overall subgroup analysis; B: Subgroup analysis according to study design; C: Subgroup analysis according to the study country; D: Subgroup analysis according to mean age of the participants; E: Subgroup analysis according to the sex of the participants; F: Subgroup analysis according to the definition of prediabetes; G: Subgroup analysis according to the mean follow-up duration; H: Subgroup analysis according to adjustment for body mass index or waist circumference. CI: Confidence interval.

Figure 3 Funnel plots of the association between prediabetes and the risk of colorectal cancer. RR: Risk ratio.