Table 2.
Staging statistics under AJCC v6 and v7 guidelines.
| AJCC v6 | # (%) | AJCC v7 | # (%) |
|---|---|---|---|
| Stage I | 28 (1) | Stage I | 936 (38) |
| T1a N0 M0 G1 | T1a-c N0 M0 PSA<10 GS≤6 | 735 | |
| T2a N0 M0 PSA<10 GS≤6 | 201 | ||
| T1-2a N0 M0 PSAX GX | 0 | ||
| Stage II | 2263 (91) | Stage II | 1355 (55) |
| T1a N0 M0 G2-4 | 5 | Stage IIA | 871 |
| T1b N0 M0 Any G | 19 | T1a-c N0 M0 PSA<20 GS7 | 233 |
| T1c N0 M0 Any G | 1316 | T1a-c N0 M0 PSA≥10 <20 GS≤6 | 224 |
| T1 N0 M0 Any G | 1344 | T2a N0 M0 PSA≥10 <20 GS≤6 | 56 |
| T2 N0 M0 Any G | 947 | T2a N0 M0 PSA<20 GS7 | 100 |
| T2b N0 M0 PSA<20 GS≤7 | 258 | ||
| T2b N0 M0 PSAX GX | 0 | ||
| Stage IIB | 484 | ||
| T2c N0 M0 Any PSA Any GS | 134 | ||
| T1-2 N0 M0 PSA≥20 Any GS | 171 | ||
| T1-2 N0 M0 Any PSA GS ≥8 | 179 | ||
| Stage III | 152 (6) | Stage III | 152 (6) |
| T3 N0 M0 Any G | T3a-b N0 M0 Any PSA Any GS | ||
| Stage IV | 26 (1) | Stage IV | 26 (1) |
| T4 N0 M0 Any G | 13 | T4 N0 M0 Any PSA Any GS | 13 |
| Any T N1 M0 Any G | 9 | Any T N1 M0 Any PSA Any GS | 10 |
| Any T4 Any N M1 Any G | 1 | Any T4 Any N M1 Any PSA Any GS | 3 |
Abbreviations: AJCC = American Joint Committee on Cancer; T = tumor; N = node; M = metastasis; G = grade; GS = Gleason score; G1 = well differentiated (GS 2-4), G2-4 = moderately differentiated (GS5-6), G5-6; poorly differentiated (GS7-10); PSA = prostate specific antigen; v6 = 6th edition; v7 = 7th edition