The impact of breast cancer biological subtyping on tumor size assessment by ultrasound and mammography - a retrospective multicenter cohort study of 6543 primary breast cancer patients

Table 4 Patient age impacts both ultrasound and mammography precision

Age (years) versus T stadium	pT1	pT2	pT3
<50	0.63591	0.33570	0.02839
50-70	0.63337	0.33754	0.02908
>70	0.46590	0.48902	0.04509
Age (years) versus Grading	G1	G2	G3
<50	0.095	0.530	0.375
50-70	0.122	0.627	0.251
>70	0.092	0.674	0.234
Age (years) versus HR expression	HR negative	HR incompletely responsive	HR positive
<50	0.20	0.23	0.57
50-70	0.14	0.21	0.65
>70	0.10	0.21	0.69
Age (years) versus HER2/neu expression	HER2/neu negative	HER2/neu positive
<50	0.82	0.18
50-70	0.85	0.15
>70	0.88	0.12
Age (years) versus histological subtype	Ductal invasive	Lobular invasive
<50	0.75	0.093
50-70	0.72	0.133
>70	0.71	0.128
Age (years)	HER2/neu negative	HER2/neu positive
<50	0.82	0.18
50-70	0.85	0.15
>70	0.88	0.12

Relative Quantifications for T stadium, Grading, HR expression, HER2/neu expression or histological subtype in relation to age are shown

ISSN: 1471-2407