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Table 4 Interview Comments Indicating Potential Age Influences on Responses

From: Individuals with knee impairments identify items in need of clarification in the Patient Reported Outcomes Measurement Information System (PROMIS®) pain interference and physical function item banks – a qualitative study

Item

Item text

Interview comments

PFA1

Does your health now limit you in doing vigorous activities, such as running, lifting heavy objects, participating in strenuous sports?

“I didn’t even consider the ‘participating in strenuous sports’ part – not in my age bracket.”

“My age and my caution limit me in doing these things.”

PFA41.a

Are you able to squat like a baseball catcher and get back up?

“Squatting like a catcher is irrelevant for someone my age.”

PFC13.a

Are you able to sprint 100 yards?

“I haven’t sprinted since I was 18. Sprinting is what football players do.”