Table 1.

The phenotypic model for frailty involves the assessment of five different components (weight loss, exhaustion, weakness, slowness, and low physical activity); and then diagnosing the subject as robust, pre-frail, or frail, according to the number of components that resulted positive in the tests: robust (green rows) for zero components, pre-frail (yellow rows) for 1 or 2 components, or frail (red rows) for 3, 4, or 5 components.

If a Subject Tests Positive to:	He is Diagnosed as:
0 components	Robust.
1 component	Pre-frail.
2 components
3 components	Frail.
4 components
5 components