Table 4.
Accuracy Indices of Literature-Based and Sample-Based Cutoff Scores of the Significant Discriminators of the Faller (One or More Falls) and Recurrent Faller (Two or More Falls) Model
| Measure and cutoff score type | Cutoff score (≤) | Sensitivity (TPR) | Specificity (TNR) | DOR | PR |
|---|---|---|---|---|---|
| One or more falls (≥1F) | |||||
| CB&M | |||||
| Lit. | 45 | 0.71 | 0.60 | 3.64 | 0.62 |
| Sample | 59 | 0.88* | 0.53 | 8.00 | 0.62 |
| Two or more falls (≥2F) | |||||
| CB&M | |||||
| Lit. | 45 | 0.93* | 0.60 | 19.50 | 0.36 |
| Sample | 39 | 0.79 | 0.76 | 11.61 | 0.36 |
| ABC | |||||
| Lit. | 67 | 0.21 | 0.96 | 6.55 | 0.36 |
| Sample | 87 | 0.79* | 0.88 | 26.89 | 0.36 |
| DGI | |||||
| Lit. | 19 | 0.64 | 0.72 | 4.63 | 0.36 |
| Sample | 20 | 0.79 | 0.72 | 9.43 | 0.36 |
| BBS | |||||
| Lit. | 45 | N/A† | N/A† | N/A† | N/A† |
| Sample | 53 | 0.79 | 0.68 | 7.79 | 0.36 |
*
Statistically significant difference in sensitivity and specificity between literature-based and sample-based cut-off scores within an assessment.
†
No participants below the literature-based cut-off score (BBS<45).
TPR=true positive ratio; TNR=true negative ratio; DOR=diagnostic odds ratio; PR=prevalence; Lit.=literature-based cut-off score; sample=sample-based cut-off score; CB&M=Community Balance and Mobility Scale; ABC=Activities-Specific Balance Confidence; DGI=Dynamic Gait Index; BBS=Berg Balance Scale; N/A=not applicable.