Table 3.
Quadrantectomies performed in Italy between 2000 and 2005 (SDO Italian hospitalizations database)
| Age group | 2000 | 2001 | 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% |