Table 2 Comparison of Ceiling item difficulty ratings with PROMIS PF-10 items (bolded font)

■ What do you think is your best time for running 1 mile now?

■ Row a rowboat

■ Running 10 miles?

■ Climb a ladder to trim a tree?

■ Running 5 miles?

■ How many minutes does it take for you to walk one mile?

■ Run at a fast pace for two miles?

■ Doing heavy work around the house like scrubbing floors, or lifting or moving heavy furniture?

■ Run/jog slowly for two miles?

■ Bending, kneeling, stooping?

■ Over a one-week period, how many times did you do any vigorous physical activity which made you breathe harder or puff and pant?

■ Dig a hole in the dirt with a shovel?

■ Doing strenuous activities such as backpacking, skiing, playing singles tennis, bicycling or jogging?

■ Trim a hedge?

■ Climb 15 flights of stairs (60 steps)?

■ Walking more than a mile?

■ Doing eight hours of physical labor?

■ Take a 20-minute brisk walk, without stopping to rest?

■ In the last week, what do you estimate was the total time that you spent doing vigorous physical activity?

■ Move a full garbage/recycle bin?

■ Push/move an empty refrigerator?

■ Hand wash/wax a car?

■ Doing vigorous activities, such as running, lifting heavy objects, participating in strenuous sports?

■ Do chores such as vacuuming or yard work?

■ Climb 10 flights of stairs (40 steps)?

■ Climbing 1 flight of stairs?

■ Lifting/carrying groceries?

■ Shampoo your hair?

■ Wash/dry your body?

■ Get on/off toilet?

■ Dress yourself, including shoelaces and buttons?