Table 2.

Characteristics of serrated polyposis syndrome patients who underwent genetic testing

		Total
		n = 73
WHO type	Type 1	43 (58.9%)
	Type 2	10 (13.7%)
	Types 1 and 2	20 (27.4%)
Sex	Female	45 (61.6%)
	Male	28 (38.4%)
Age (years)	Mean ± SD	57.2 ± 16.6
Age at diagnosis (years)	Mean ± SD	52.1 ± 16.4
Dysplasia in SP	Yes	20 (27.4%)
	No	53 (72.6%)
Colorectal cancer history	Yes	11 (15.1%)
	No	62 (84.9%)
Smoking	Smoker	16 (21.9%)
	Ex‐smoker	15 (20.5%)
	Never smoker	20 (27.4%)
	Unknown	22 (30.1%)

WHO, World Health Organization.