## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c} \hline  & & **BCS (_n_ = 188)** & **(\%)** & **Mastectomy (_n_ = 64)** & **(\%)** & **Total (_n_ = 252)** & **(\%)** \\ \hline Age at diagnosis & Mean (IC 95\%) & 54 (52–56) & & 54 (52–57) & & 54 (52–55) & \\  & \(\leq\)54 & 108 & 57.4 & 31 & 48.4 & 113 & 44.8 \\  & \(>\)54 & 80 & 42.5 & 33 & 51.6 & 139 & 55.2 \\  & Total & 188 & 100.00 & 64 & 100.00 & 252 & 100.00 \\ \hline ER & Neg & 56 & 30.11 & 21 & 33.87 & 77 & 31.05 \\  & Pos & 130 & 69.89 & 41 & 66.13 & 171 & 68.95 \\  & Total & 186 & 100.00 & 62 & 100.00 & 248 & 100.00 \\ \hline PgR & Neg & 62 & 33.51 & 25 & 40.32 & 87 & 35.22 \\  & Pos & 123 & 66.49 & 37 & 59.68 & 160 & 64.78 \\  & Total & 185 & 100.00 & 62 & 100.00 & 247 & 100.00 \\ \hline Ki67 (\(\geq\)20\%) & Low & 86 & 45.74 & 27 & 42.19 & 113 & 45.56 \\  & High & 98 & 52.13 & 37 & 57.81 & 135 & 54.44 \\  & Total & 188 & 100.00 & 64 & 100.00 & 248 & 100.00 \\ \hline HER2 & Neg & 136 & 85.53 & 48 & 84.21 & 184 & 85.19 \\  & Pos & 23 & 14.47 & 9 & 15.79 & 32 & 14.81 \\  & Total & 159 & 100.00 & 57 & 100.00 & 216 & 100.00 \\ \hline Molecular subtype & Luminal A & 76 & 44.19 & 20 & 32.79 & 96 & 41.20 \\  & Luminal B & 42 & 24.42 & 17 & 27.87 & 59 & 25.32 \\  & HER2 pos & 23 & 13.37 & 15 & 24.59 & 38 & 16.31 \\  & Triple negive & 31 & 18.02 & 9 & 14.75 & 40 & 17.17 \\  & Total & 172 & 100.00 & 61 & 100.00 & 233 & 100.00 \\ \hline Histological Diagnosis & Ductal & 168 & 89.36 & 53 & 82.81 & 221 & 87.70 \\  & Other & 20 & 10.64 & 11 & 17.19 & 31 & 12.3 \\  & Total & 188 & 100.00 & 64 & 100.00 & 252 & 100.00 \\ \hline Tumor size \({}^{**}\) & T1 & 135 & 71.81 & 34 & 53.13 & 169 & 67.06 \\  & T2 & 53 & 28.19 & 30 & 46.88 & 83 & 32.94 \\  & Total & 188 & 100.00 & 64 & 100.00 & 252 & 100.00 \\ \hline Grading & G1 & 25 & 14.04 & 6 & 10.17 & 31 & 13.08 \\  & G2 & 79 & 44.38 & 30 & 50.85 & 109 & 45.99 \\  & G3 & 74 & 41.57 & 23 & 38.98 & 97 & 40.93 \\  & Total & 178 & 100.00 & 59 & 100.00 & 237 & 100.00 \\ \hline Multiplicity/Multifocality \({}^{*}\) & No & 156 & 85.71 & 45 & 75.00 & 201 & 83.06 \\  & Yes & 26 & 14.29 & 15 & 25.00 & 41 & 16.94 \\  & Total & 182 & 100.00 & 60 & 100.00 & 242 & 100.00 \\ \hline DCIS & Absent & 127 & 75.60 & 32 & 60.38 & 159 & 71.95 \\  & Present & 41 & 24.40 & 21 & 39.62 & 62 & 28.05 \\  & Total & 168 & 100.00 & 53 & 100.00 & 221 & 100.00 \\ \hline Type of shooting & Locoregional & 20 & 33.33 & 3 & 15.79 & 23 & 29.11 \\  & Other & 40 & 66.67 & 16 & 84.21 & 56 & 70.89 \\  & Total & 60 & 100.00 & 19 & 100.00 & 79 & 100.00 \\ \hline \end{tabular} \({}^{*}\)\(p\)-value [PERSON]’s exact test \(<\) 0.05, \({}^{**}\)\(p\)-value [PERSON]’s exact test \(<\) 0.01.  
\end{table} 
Table 1: Characteristics of the total collected data (_n_ = 252) as well as separate characteristics of patients treated with BCS (_n_ = 188) and mastectomy (_n_ = 68). \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c} \hline \hline  & & \multicolumn{4}{c}{**BCS**} & \multicolumn{4}{c}{**Masterology**} & \multicolumn{4}{c}{**\#V2 DF**} \\  & & & \multicolumn{4}{c}{**5 Year DFS**} & \multicolumn{4}{c}{**10 Year DFS**} & \multicolumn{4}{c}{**5 Year DFS**} & \multicolumn{4}{c}{**10 Year DFS**} & \multicolumn{4}{c}{**\(p\)-Value**} \\  & & & \multicolumn{4}{c}{**Pr. Ew. 05\% Cb**} & \multicolumn{4}{c}{**Pr. Ew. (95\% Cb)**} & \multicolumn{4}{c}{**Pr. Ew. (95\% Cb)**} & \multicolumn{4}{c}{**Pr. Ew. (95\% Cb)**} & \multicolumn{4}{c}{**Pr. Ew.