Table 2.
Distribution of instrument items in the training and post-RP test sets
| Instrument item | Training set |
Post-RP test set |
||
|---|---|---|---|---|
| N = 825 | Mean (SD) | N = 412 | Mean (SD) | |
| MSK sexual domain (IIEF-6) | 689 | 11 (10) | 346 | 11 (9.0) |
| MSK urinary domain | 807 | 16 (5.0) | 403 | 16 (5.0) |
| EPIC sexual domain | 782 | 38 (28) | 391 | 37 (29) |
| EPIC UIN domain | 809 | 69 (28) | 400 | 66 (27) |
| EPIC UIR domain | 797 | 89 (14) | 395 | 90 (12) |
| MSK sexual domain (IIEF-6) | ||||
| MSKEF2 | 688 | 2.3 (1.3) | 346 | 2.2 (1.3) |
| MSKEF3 | 688 | 3.2 (1.7) | 348 | 3.1 (1.7) |
| MSKEF4 | 675 | 2.9 (1.7) | 341 | 2.8 (1.7) |
| MSKEF5 | 802 | 2.3 (1.8) | 398 | 2.3 (1.8) |
| MSKEF6 | 788 | 2.3 (1.8) | 392 | 2.2 (1.8) |
| MSKEF7 | 771 | 2.4 (1.9) | 378 | 2.3 (1.8) |
| MSK urinary domain | ||||
| MSKUF1 | 806 | 2.2 (1.4) | 403 | 2.2 (1.4) |
| MSKUF2 | 806 | 1.9 (1.3) | 401 | 1.9 (1.4) |
| MSKUF3 | 805 | 1.7 (1.1) | 401 | 1.7 (1.2) |
| MSKUF4 | 805 | 2.2 (1.2) | 402 | 2.1 (1.2) |
| MSKUF5 | 804 | 2.1 (1.2) | 401 | 2.2 (1.2) |
| EPIC sexual domain | ||||
| EPIC57 | 765 | 2.1 (1.3) | 380 | 2.1 (1.3) |
| EPIC58 | 774 | 2.8 (1.4) | 389 | 2.7 (1.4) |
| EPIC59 | 800 | 2.2 (1.2) | 399 | 2.2 (1.2) |
| EPIC60 | 797 | 2.6 (1.3) | 400 | 2.5 (1.3) |
| EPIC64 | 798 | 2.2 (1.3) | 400 | 2.1 (1.3) |
| EPIC68 | 799 | 3.2 (1.4) | 401 | 3.2 (1.4) |
| EPIC UIN | ||||
| EPIC23 | 810 | 3.2 (1.7) | 402 | 3.1 (1.6) |
| EPIC26 | 810 | 3.2 (0.7) | 402 | 3.1 (0.7) |
| EPIC27 | 810 | 0.72 (0.96) | 402 | 0.72 (0.97) |
| EPIC28 | 809 | 1.2 (1.1) | 400 | 1.3 (1.2) |
| EPIC UIR | ||||
| EPIC29 | 807 | 0.16 (0.56) | 397 | 0.15 (0.51) |
| EPIC30 | 806 | 0.05 (0.36) | 398 | 0.02 (0.12) |
| EPIC31 | 802 | 0.48 (0.92) | 399 | 0.40 (0.80) |
| EPIC33 | 808 | 1.1 (1.2) | 398 | 1.1 (1.2) |
| EPIC urinary overall (EPIC34) | 809 | 2.2 (1.2) | 400 | 2.2 (1.2) |
RP = radical prostatectomy; SD = standard deviation; MSK = Memorial Sloan Kettering; EPIC = Expanded Prostate Cancer Index Composite; IIEF = International Index of Erectile Function; UIN = urinary incontinence; UIR urinary irritative/obstructive.