Table 3.
Descriptive statistics by time order.
| Time point | Sample size, n | PSIa T-score, mean (SD) | PROMISb physical T-score, mean (SD) | PROMIS mental T-score, mean (SD) |
| 1 | 362c | 39.1 (6.7) | 46.8 (8.3) | 45.7 (8.6) |
| 2 | 221 | 41.4 (7.0) | 48.7 (8.1) | 46.8 (8.7) |
| 3 | 144 | 40.9 (7.2) | 47.8 (8.4) | 46.4 (8.5) |
| 4 | 109 | 41.3 (6.7) | 48.1 (8.2) | 46.6 (9.0) |
| 5 | 92 | 41.2 (6.7) | 48.7 (7.2) | 47.8 (8.3) |
| 6 | 65 | 41.0 (6.5) | 48.4 (6.7) | 46.6 (8.0) |
| 7 | 48 | 41.2 (6.0) | 47.3 (7.5) | 47.8 (8.1) |
| 8 | 35 | 43.0 (7.4) | 47.9 (8.7) | 46.8 (7.5) |
| 9 | 30 | 41.7 (7.2) | 48.2 (8.5) | 46.5 (7.8) |
| 10 | 18 | 42.6 (7.1) | 49.2 (7.7) | 47.8 (8.1) |
| 11 | 14 | 42.9 (7.9) | 48.7 (7.8) | 47.4 (9.3) |
| 12 | 11 | 43.2 (9.5) | 47.7 (6.5) | 48.3 (9.4) |
| 13 | 8 | 47.8 (8.4) | 54.8 (7.1) | 53.5 (9.3) |
| 14 | 7 | 45.8 (6.9) | 50.5 (11.8) | 49.6 (6.2) |
| 15 | 4 | 48.9 (6.0) | 57.9 (3.2) | 53.6 (6.9) |
| 16 | 2 | 51.5 (3.5) | 59.8 (3.0) | 55.4 (10.0) |
aPSI: Parsley Symptom Index.
bPROMIS: Patient-Reported Outcomes Measurement Information System.
cOf the 367 unique participants, 5 were excluded from time point 1 due to corrupted data files for the PSI or PROMIS assessments. This resulted in a sample size of 362 for the initial time point.