Colorectal Serrated Neoplasia: An Institutional 12-Year Review Highlights the Impact of a Screening Programme

Table 3

Characteristics of SSL/Ps identified over a 12-year period at our institution; .

Parameter	All SSL/Ps	SSL/Ps without dysplasia	SSL/Ps with dysplasia (all LGD)
Number (, %)	520	485 (93.3%)	35 (6.7%)
Age of patient (years)
Median	63	63	69
Range	19-84	19-84	47-83
Site (, %)
Right colon	451 (86.7%)	423 (87.2%)	28 (80%)
Left colon	62 (11.9%)	55 (11.3%)	7 (20%)
Colon NOS	7 (1.4%)	7 (1.4%)	—
Size (mm)
Median	8	8	10
Range	1-32	1-32	3-30
Size category (, %)
< 1 cm	167 (64.5%)	162 (66.4%)	5 (33.3%)
≥1 cm	92 (35.5%)	82 (33.6%)	10 (66.7%)

Abbreviations: SSL/Ps: sessile serrated lesions/polyps; NOS: not otherwise specified; LGD: low-grade dysplasia.