Common methods of determining meaningful change in clinical practice: implications for precision patient-reported outcomes.

Most providers determined individual-level meaningful change without a visual aid and used only the previous score and current score, the minimum number (2 scores) to determine change. Consistent with current practice, future research on methods of determining within-individual meaningful change for clinical use should focus on methods requiring two rather than three or more scores. When attempting to personalize within-individual change definitions (Precision PROs), methods examining a baseline and single follow-up may be most useful for clinical practice.