Breast fibroadenomas are not associated with increased breast cancer risk in an African American contemporary cohort of women with benign breast disease

Table 3 Relative risk of breast cancer by fibroadenoma status

	Age-adjusted relative risk^a (95% CI)	P value^b	Fully adjusted relative risk^c (95% CI)	P value^b
No fibroadenoma on biopsy	Ref		Ref
Fibroadenoma	0.64 (0.48, 0.85)^d	0.003	0.67 (0.48, 0.93)^e	0.017
Under age 50 years
No fibroadenoma on biopsy	Reference		Reference
Fibroadenoma	0.71 (0.45, 1.11)^f	0.133	0.58 (0.34, 0.96)^g	0.037
Age 50 years or older
No fibroadenoma on biopsy	Reference		Reference
Fibroadenoma	0.68 (0.46, 0.98)^h	0.042	0.79 (0.52, 1.19)ⁱ	0.275

^aMultivariable logistic regression model adjusting for age at biopsy
^bWald test statistic
^cMultivariable logistic regression model adjusting for age, proliferative disease, and cellular atypia at biopsy
Number at risk: ^d3845, ^e3761, ^f2234, ^g2071, ^h1611, ⁱ1536

ISSN: 1465-542X