prev. year – -6.05% -0.02% -7.88% -1.17% +1.10% > 75 4 497 4 464 4 604 4 607 4 326 4 249 % increase vs.

prev. year – -0.73% +3.13% +0.06% -6.09% -1.77% Total 17 283 17 281 17 453 16 666 16 205 15 857 % increase vs. prev. year – -0.01% +0.99% -4.50% -2.76% -2.14% Table 3 Quadrantectomies performed in Italy between 2000 and 2005 (SDO Italian hospitalizations database) Age group 2000 2001 see more 2002 2003 2004 2005 25–44 3 438 3 714 3 940 4 032 4 610 4 808 % increase vs. prev. year – +8.02% +6.08% +2.33% +14.33% +4.29% 45–64 12 780 13 761 14 354 14 551 15 113 15 518 % increase vs. prev. year – +7.67% +4.30% +1.37% +3.86% +2.67% 65–74 5 443 5 806 6 197 6 314 7 423 6 980 % increase vs. prev. year – +6.66% +6.73% +1.88% +17.56% -5.96% > 75 2 664 2 881 2 547 3 502 3 734 4 037 % increase vs. prev. year – +8.14% -11.59% +37.49% +6.62% +8.11% Total 24 325 26 162 27 038 28 399 30 880 31 343 % increase vs. prev. year – +7.55% +3.34% +5.03% +8.73% +1.49% The total number of mastectomies went from 17,283 in the year 2000 to 15,857 in 2005 (with a reduction of about -8.2% across the six examined years). We observed in most age groups (45–64, 65–74 and ≥ 75 years) a reduction in the number of mastectomies between year 2005 vs. year 2000, with the only Ku-0059436 nmr exception of women aged <45 years old (an age group excluded from national screening campaigns), where an increase of 7.9% in the number of mastectomies was found (Table 2).

This finding could be related to a late diagnosis of breast tumors in women aged 25–44, thus requiring disruptive surgery. On the other hand, there was an increase of 28.8% in the overall number of quadrantectomies, passing from 24,325 (year 2000) to 31,343 in 2005. The

increase of quadrantectomies was shown in all the four age groups (Table 3). Even in the youngest age group, quadrantectomies increased more than mastectomies, as Vorinostat molecular weight a 28.6% increase (+1517 cases) in the overall number of procedures (mainly quadrantectomies) was found in women <45 years of age, and accounted for about 15% of the overall increase observed across the six examined years in the total number of surgeries. A total of 38,164 mastectomies and 86,077 quadrantectomies were performed in patients aged between 45 and 64 years across the six years examined, with quadrantectomies increasing by a rate of about 21.0%. Similarly, in patients aged 65–74 and ≥ 75 years old, we observed an increase of 28.3% (+1537 cases) and 51.5% (+1373 cases) respectively, concerning the number of quadrantectomies performed between 2000 and 2005. In table 2 and table 3 we have also shown the percentage of average yearly increase, and the % increase vs. previous year per each age group. According to our data concerning major breast surgeries, the overall incidence of breast cancer per 100.000 women aged 0–84 years old was 141.80 in year 2000 and 160.85 in 2005, with a 13.4% increase (Table 4).