Impact Of Universal Screening Of Colorectal Cancer (Crc) For Detection Of Lynch Syndrome (Ls) At A Hispanic-Predominant County Hospital.

199Background: Historically, the Amsterdam and Bethesda criteria were used to select patients (pts) for LS screening. In 2014, universal screening (US) for LS was shown to be cost effective. Thus, to increase LS screening, we implemented an algorithm for pathologists to reflex immunohistochemistry (IHC) on newly diagnosed CRC. Here, we evaluate the effectiveness of US program with reflex testing for LS for all new CRC. Methods: Retrospective analysis of new diagnoses of CRC (01/2012 – 04/2016): a county hospital with follow-up at NCI-designated CTRC. 3 patient cohorts: 1) PRE-intervention (01/2012–09/2014): screening ordered per old guidelines; 2) PERI (10/2014–02/2015): clinician education on new guidelines; 3) POST (03/2015–04/2016): after implementation. Endpoints: proportion of pts screened and time to screening, quality of family history (FHX) by clinicians, FHX of LS-related cancer, genetic counseling. Results: 381 patients: mean age (57): 69 pts age u003c 50; 312 pts age ≥ 50. Female 151/male 230; 238 ...