Additional file 4. Discrimination performance results and reported classification metrics for all reviewed models, presented separately by validation type (apparent performance, internal validation, e
Pearson correlation coefficients were calculated between the variables. *Statistically significant at the level of p<0.05. **Statistically significant at the level of p<0.001. The correlations between
Stringent social distancing measures implemented to control the spread of COVID-19 affected older adults living alone by limiting their social interaction beyond their households. During these restric