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Table 1 Components of the phenotype model and the frailty index of deficit accumulation

From: An overview of osteoporosis and frailty in the elderly

Approach to measuring grades of frailty Components
The phenotype modela Exhaustion
Low physical activity
Weakness
Slow walking
Unintentional weight loss
The frailty index of deficit accumulationb Deficits of symptoms and signs
Comorbidities
Deficits of activities of daily living
Deficits of social relations and social support
  1. ahe phenotype model is based on five physical indicators
  2. bThe frailty index of deficit accumulation is calculated from a variety of individual health deficits