Table 4.

Effect of Size of Hyperplastic Polyps on Adenoma Recurrence among Participants with 1 or 2 Low-Risk Adenomas at Baseline^*

Baseline Characteristics		Follow-up colonoscopy findings
Largest size of hyperplastic polyps	Number of subjects (%)	Any adenoma recurrence ¶ OR (95% CI)	Advanced adenoma recurrence †¶ OR (95% CI)
No hyperplastic polyp	598 (74.8)	1.0 (reference)	1.0 (reference)
< 6 mm	161 (20.1)	1.06 (0.73–1.55)	0.91 (0.35–2.36)
≥ 6 mm	41 (5.1)	1.53 (0.79–2.96)	2.96 (0.90–9.69)

^*For 800 out of 829 participants; 29 participants with missing information on size of hyperplastic polyps were excluded

^†Advanced adenoma = any adenoma with size ≥ 10mm or high-grade dysplasia or villous histology

^¶Multivariable adjustment for age, sex, body mass index and smoking