Adenoid cystic carcinoma of the breast in the United States (1977 to 2006): a population-based cohort study

Breast Cancer Research

Table 2 Standardized incidence ratios of subsequent cancer among 2-month female survivors of first primary breast-ACC

Subsequent cancer^a	Obs.	SIR	95% CI
All cancers, excluding nonmelanoma skin	40	1.01	0.72 to 1.38
All solid cancers	33	0.94	0.65 to 1.32
Colon and rectum	8	1.43	0.62 to 2.81
Lung and bronchus	7	1.24	0.50 to 2.55
Female breast	10	0.89	0.43 to 1.64
Uterine corpus	3	1.27	0.26 to 3.72
All lymphohematopoietic cancers	6	1.86	0.68 to 4.05
Non-Hodgkin lymphoma	4	2.44	0.66 to 6.24
Acute myeloid leukemia	2	7.24	0.88 to 26.16

Data from the nine cancer registry areas of the Surveillance, Epidemiology and End Results Program, 1977 to 2006. Breast-ACC, adenoid cystic carcinoma of the breast; Obs., observed number of subsequent cancers; SIR, standardized incidence ratio; CI, confidence interval. ^aLimited to cancer sites with >1 case diagnosed among 300 2-month survivors (2,986 female-years; mean follow-up 9.95 years) of first primary breast-ACC. There was one individual with miscellaneous cancer that is not included in the all solid cancers or all lymphohematopoietic cancers categories.

ISSN: 1465-542X