Table 5.
Known groups validity post-baseline: Associations between PRO measures and FACIT-TS-G
| PRO measure |
||||
|---|---|---|---|---|
| Satisfaction With Breast Cosmetic Outcomes | BREAST-Q Radiation Module | |||
| FACIT-TS-G | ||||
| Compared with what you expected, how do you rate the effectiveness of the treatment so far? | Completion of RT | 6 months after completion of RT | Completion of RT | 6 months after completion of RT |
| A lot worse | 2.7 (1.1) n= 12 | 3.1 (1.1) n= 14 | 20.8 (27.1) n= 12 | 61.3 (32.4) n= 13 |
| A little worse | 2.9 (0.8) n= 10 | 2.8 (0.9) n= 20 | 39.0 (22.8) n= 10 | 60.0 (25.8) n= 20 |
| About the same | 3.0 (1.0) n = 284 | 3.1 (1.0) n = 291 | 49.3 (29.1) n = 287 | 73.6 (24.2) n = 300 |
| A little better | 3.0 (1.0) n = 126 | 3.2 (1.0) n = 119 | 54.4 (29.5) n = 129 | 76.1 (21.6) n = 120 |
| A lot better | 3.4 (1.0) n = 142 | 3.6 (1.0) n = 289 | 61.8 (27.7) n = 146 | 82.2 (20.2) n = 292 |
| P < .001 | P < .001 | P < .001 | P < .001 | |
| Compared with what you expected, how do you rate the side effects of treatment so far? | ||||
| A lot worse | 2.6 (1.0) n= 58 | 2.7 (1.0) n= 58 | 24.2 (21.8) n= 59 | 57.3 (28.5) n= 58 |
| A little worse | 2.9 (1.0) n = 133 | 3.0 (1.0) n = 145 | 37.2 (25.4) n = 134 | 68.1 (24.2) n = 147 |
| About the same | 3.1 (1.0) n = 125 | 3.3 (1.0) n = 161 | 52.1 (26.1) n = 130 | 76.7 (22.7) n = 163 |
| A little better | 3.2 (1.0) n = 135 | 3.3 (1.0) n = 142 | 60.2 (25.8) n = 138 | 79.1 (19.6) n = 145 |
| A lot better | 3.5 (0.9) n = 131 | 3.7 (1.0) n = 231 | 74.1 (23.4) n = 134 | 85.9 (17.5) n = 236 |
| P < .001 | P < .001 | P < .001 | P < .001 | |
| Do you feel you received the treatment that was right for you? | ||||
| No, not at all | 2.5 (1.0) n= 3 | 2.4 (0.6) n= 8 | 36.7 (35.1) n=3 | 51.2 (34.4) n= 8 |
| Yes, to some extent | 2.6 (0.9) n= 50 | 2.7 (1.0) n= 57 | 38.4 (29.0) n= 51 | 57.9 (27.6) n= 56 |
| Yes, for the most part | 3.0 (0.9) n = 183 | 3.1 (1.0) n = 207 | 49.2 (29.3) n = 188 | 73.7 (23.5) n = 210 |
| Yes, completely | 3.3 (1.0) n = 346 | 3.5 (1.0) n = 465 | 56.9 (28.5) n = 353 | 81.2 (20.3) n = 474 |
| P < .001 | P < .001 | P < .001 | P < .001 | |
| Are you satisfied with the effects of this treatment so far? | ||||
| No, not at all | 2.3 (1.0) n= 15 | 2.7 (0.9) n= 22 | 20.0 (24.5) n= 15 | 50.8 (30.2) n= 21 |
| Yes, to some extent | 2.7 (0.9) n= 74 | 2.7 (1.0) n= 60 | 35.7 (27.2) n= 74 | 60.4 (26.0) n= 60 |
| Yes, for the most part | 3.0 (0.9) n = 218 | 3.1 (1.0) n = 258 | 50.7 (27.7) n = 227 | 72.5 (23.2) n = 262 |
| Yes, completely | 3.4 (1.0) n = 268 | 3.6 (1.0) n = 391 | 61.2 (27.8) n = 271 | 84.2 (18.3) n = 398 |
| P < .001 | P < .001 | P < .001 | P < .001 | |
| Would you recommend this treatment to others with your illness? | ||||
| No | 2.3 (1.3) n= 7 | 2.5 (1.0) n= 13 | 45.7 (31.0) n=7 | 48.5 (27.0) n= 13 |
| Maybe | 2.7 (0.9) n = 111 | 3.0 (1.0) n = 136 | 40.0 (28.9) n = 114 | 65.9 (26.9) n = 136 |
| Yes | 3.2 (1.0) n = 467 | 3.4 (1.0) n = 591 | 56.0 (28.6) n = 477 | 80.2 (20.7) n = 602 |
| P < .001 | P < .001 | P < .001 | P < .001 | |
| Would you choose this treatment again? | ||||
| No | 2.7 (1.1) n= 28 | 2.6 (1.0) n= 37 | 40.9 (30.6) n= 29 | 53.1 (27.2) n= 36 |
| Maybe | 2.8 (1.0) n = 140 | 3.1 (1.0) n = 147 | 41.8 (27.9) n = 142 | 67.7 (25.8) n = 150 |
| Yes | 3.3 (1.0) n = 415 | 3.4 (1.0) n = 553 | 57.4 (28.4) n = 425 | 81.0 (20.2) n = 561 |
| P < .001 | P < .001 | P < .001 | P < .001 | |
Entries in table denote mean (SD). For Satisfaction With Breast Cosmetic outcomes, higher scores (range, 1–5) represent more satisfaction. For BREAST-Q Radiation Module, higher scores (range, 0–100) represent less bother.
Abbreviations: FACIT-TS-G = Functional Assessment of Chronic Illness Therapy -Treatment Satisfaction − General; PRO = patient-reported outcome; RT = radiation therapy.