Table 1 Cut-offs used to identify persons with mild, moderate, and severe disability. “Score” refers to the performance metric score. “Mean” refers to sample mean of the given score. “1SD” refers to one standard deviation of the given score
Level of disability | Cut-off |
|---|---|
No | Score < Mean – 1SD or Score = 0 |
Mild | Mean – 1SD < Score < Mean |
Moderate | Mean < Score < Mean + 1SD |
Severe | Score ≥ Mean + 1SD |