Table 4.

Extent of Family History Documentation in Medical Records of Patients With Breast or Colorectal Cancer

Family History Documented	Total (N = 10,466)	Breast Cancer (n = 6,569)	Colorectal Cancer (n = 3,897)	P*
First degree, %	79.8	81.2	77.4	< .001
Second degree, %	64.6	68.9	57.3	< .001

	n = 7,714	n = 4,984	n = 2,730
Documented age at diagnosis, %	41.7	45.1	35.4	< .001
Complete family history, %†	29.1	32.9	22.0	< .001

^*P value corresponds to differences between breast and colorectal cancers.

^†Complete family history is defined as presence of first- and second-degree family histories and documented age at cancer diagnosis.