Table 2. Responses to Appropriate Age to Begin Screening for CRC in Various Populations .

When to begin screening?	PGY-1	PGY-2	PGY-3	P value
For average risk patients begin at age 50	52 (98.11%)	31 (96.88%)	29 (96.67%)	1.000
For average risk African-American patients begin at age 45	11 (20.75%)	3 (9.38%)	4 (13.33%)	0.3460
For patients with a first degree relative with CRC < age 60 begin at age 40 or 10 years younger than the index case	34 (64.15%)	20 (62.50%)	22 (73.33%)	0.6141
For patients with a first degree relative with CRC > age 60, or two second degree relatives with CRC begin at age 40^^	3 (5.66%)	3 (9.38%)	3 (10.00%)	0.7383
For patients with a first degree relative with CRC > age 60, or two second degree relatives with CRC begin at age 50^	12 (22.64%)	11 (34.38%)	14 (46.67%)	*0.0756

*Denotes a statistically significant value. ^Appropriate answer as per ACG 2008 guidelines. ^^Appropriate answer as per ACS 2008 guidelines.