Table 1 Operational definition of five criteria for defining frailty among Chinese older adults
Criteria | Definition | |
|---|---|---|
Slowness | Gait speed (Men): | Gait speed (Women): |
Height ≤ 163 cm: ≤0.45 m/s | Height ≤ 151 cm: ≤0.36 m/s | |
Height > 163 cm: ≤0.48 m/s | Height > 151 cm: ≤0.43 m/s | |
Weakness | Grip strength (Men): | Grip strength (Women): |
BMI ≤20.6 kg/m2: ≤25.2 kg | BMI ≤20.0 kg/m2: ≤15.0 kg | |
BMI 20.6–23.2 kg/m2: ≤28.5 kg | BMI 20.0–22.1 kg/m2: ≤17.5 kg | |
BMI 23.2–25.9 kg/m2: ≤30.0 kg | BMI 22.1–24.8 kg/m2: ≤17.5 kg | |
BMI > 25.9 kg/ m2: ≤30.0 kg | BMI > 24.8 kg/m2: ≤20.0 kg | |
Exhaustion | Felt “I could not get going” or “Everything I did was an effort” at least 3–4 days during the last week | |
Inactivity | Did not walk at least 10 min continuously during a usual week | |
Shrinking | Loss of 5 or more kilograms in the previous year or BMI ≤18.5 kg/m2 | |