Table 1.

Mobility Functioning Question Wording by Survey

	HRS	MIDUS
Question stem	Please tell me whether you have any difficulty doing each of the everyday activities that I read to you. Exclude any difficulties that you expect to last less than 3 months. Because of a health problem do you have any difficulty with...?	How much does your health limit you in doing each of the following?
Walking a short distance	Walking several blocks	Walking several blocks
Climbing stairs	Climbing several flights of stairs without resting	Climbing several flights of stairs
Lifting/carrying	Lifting or carrying weights over 10 pounds (>4.5 kg), like a heavy bag of groceries	Lifting or carrying groceries
Stooping/ crouching	Stooping, kneeling, or crouching	Bending, kneeling, or stooping
Responses categories	0: No	0: Not at all
	1: Yes	1: A little
	2: Can't do	2: Some
	9: Don't do	3: A lot

Note: HRS = Health and Retirement Study; MIDUS = Midlife in the United States.