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. 2021 Nov 18;11:769683. doi: 10.3389/fonc.2021.769683

Table 6.

Tumor characteristic in BC patients aged 70 or more.

Biological parameters Modena Lecce p-Value
149 (%) 172 (%)
ER
Negative (0) 16 (11.7%) 16 (9.4%) 0.519
Positive ≥1 121 (88.3%) 154 (90.6%)
PgR
Negative (0) 24 (18.3%) 31 (18.2%) 0.932
Positive ≥1 107 (81.7%) 139 (81.8%)
HER2
Negative 121 (89.6%) 148 (88.1%) 0.650
Positive 14 (10.4%) 20 (11.9%)
Proliferation index
Low 96 (72.2%) 119 (70.4%) 0.615
High 37 (27.8%) 50 (29.6%)
Mean diameter (cm) 1.77 (0.10–18.0); SD 2.109 1.84 (0.10–9.9); SD1.657 0.040
Range of tumor dimension
<1 cm 94 (71.8%) 87 (57.6%) 0.014
>2 cm 37 (28.2%) 64(42.4%)

ER, estrogen receptor; PgR, progesterone receptor; HER2, human epidermal growth factor receptor-2; SD, standard deviation.