Table 4.

Age-adjusted odds ratios stratified by maternal history of BBD or breast cancer. Results reported (above) from analyses including all reported BBD cases (n=147 cases), whether confirmed by biopsy or not, and from analyses (below) on Biopsy-Confirmed BBD cases (n=67 cases)

	No Maternal History			Maternal History
N Cases (All reported BBD)		98			49
RISK FACTOR	OR	95%CI	P-value	OR	95%CI	P-value
Age at menarche	1.17	(.99–1.38)	(.055)	0.88	(.69–1.12)	(.30)
Adult height	1.09	(1.01–1.17)	(.03)	1.01	(.91–1.12)	(.86)
Childhood BMI	0.93	(.87–.99)	(.04)	0.96	(.87–1.05)	(.36)
Adult BMI	0.95	(.90–.99)	(.04)	0.98	(.91–1.05)	(.53)
Peak Height Velocity	0.99	(.91–1.10)	(.99)	1.194	(1.05–1.36)	(.006)
N Cases (Biopsy-Confirmed BBD)		47			20
RISK FACTOR	OR	95%CI	P-value	OR	95%CI	P-value
Age at menarche	1.16	(.92–1.47)	(.20)	0.95	(.66–1.38)	(.79)
Adult height	1.10	(.99–1.22)	(.07)	1.04	(.89–1.22)	(.61)
Childhood BMI	0.88	(.79–.98)	(.02)	0.99	(.86–1.14)	(.87)
Adult BMI	0.92	(.85–1.00)	(.053)	1.01	(.93–1.11)	(.77)
Peak Height Velocity	1.01	(.89–1.16)	(.85)	1.185	(.97–1.45)	(.096)