Table 2.

Demographic and clinical characteristics of patients with SP (n=51)

Age at SP diagnosis, median (range)	51 (18–77)
Sex, n (%)
Female	27 (53)
Male	24 (47)
Race/Ethnicity, n (%)
White	49 (96)
Hispanic	1 (2)
Ashkenazi Jewish	1 (2)
Smoking status, n (%)
Never	26 (51)
Current	15 (29)
Ever	10 (20)
Indications for surveillance colonoscopy, n (%)*
Screening	11 (22)
Hematochezia	17 (34)
Family history of CRC	7 (14)
Other (diarrhea, abdominal pain)	15 (30)
Median follow-up time in months (range)	61 (0–217)
Number of colonoscopies/sigmoidoscopies, median (range)	5 (1–11)

^*Colonoscopy indication missing for 1 participant