Table 1 Questions for the slowness and weakness criteria in the self-reported physical frailty phenotypes

Self-reported Walking Speed¹⁸⁻²⁰

Static^a

1. "Which of the following best describes your walking speed compared to the walking speed of your peers?"

a) unable to walk; b) very slow; c) stroll at an easy pace; d) normal; e) fairly brisk; f) fast

Answer “a” or “b”

n/a

Static

2. “Do you have difficulty walking 1/4 mile (2–3 blocks)?” Yes or No

If yes, is this task a) somewhat difficult; b) moderately difficult; or c) very difficult?

Answer “Yes”

Answer “Yes”, and report that this task is: “b) moderately difficult” or “c) very difficult”

Dynamic^b

3. “Compared to age 60, it is more challenging for you to cross an intersection safely because of your walking speed?” Yes or No

If yes, is it a) slightly more difficult; b) moderately more difficult; or c) extremely more difficult?

Answer “Yes”

Answer “Yes”, and report that this task is: “b) moderately difficult” or “c) very difficult”

Self-reported Grip Strength²¹⁻²³

Static

4. "Do you have difficulty lifting or carrying groceries?" Yes or No

If yes, is this task a) somewhat difficult; b) moderately difficult; or c) very difficult?

Answer “Yes”

Answer “Yes”, and report: “b) moderately difficult” or “c) very difficult”

Static

5. "Do you have difficulty with opening jars?” Yes or No

If yes, is this task a) somewhat difficult; b) moderately difficult; or c) very difficult?

Answer “Yes”

Answer “Yes”, and report: “b) moderately difficult” or “c) very difficult”

Dynamic

6. "Does an object that you lift once with slight difficulty soon become strenuous when you attempt to lift it repeatedly?" Yes or No

Answer “Yes.”

n/a