PROMIS Physical Functioning Item | Item Wording | IRT Parametersa,b | ||||
---|---|---|---|---|---|---|
Slope | Threshold 1 | Threshold 2 | Threshold 3 | Threshold 4 | ||
Lower Extremity | ||||||
PFA23 | Are you able to go for a walk of at least 15 min? | 4.28753 | − 1.9146 | − 1.5792 | − 1.1944 | − 0.6814 |
PFA21 | Are you able to go up and down stairs at a normal pace? | 4.23685 | −1.885 | −1.4805 | − 1.0464 | − 0.3953 |
PFA10 | Are you able to stand for one hour? | 3.37529 | −1.7469 | −1.3522 | − 0.9182 | − 0.3361 |
PFA3 | Does your health now limit you in bending, kneeling, or stooping? | 2.94958 | −2.25 | −1.2635 | − 0.563 | 0.029 |
PFA42 | Are you able to carry a laundry basket up a flight of stairs? | 4.39902 | −1.8357 | −1.4509 | − 1.0267 | − 0.4249 |
PFB1 | Does your health now limit you in doing moderate work around the house like vacuuming, sweeping floors or carrying in groceries? | 4.38889 | −2.4474 | −1.6384 | −1.076 | −0.632 |
PFA5 | Does your health now limit you in lifting or carrying groceries? | 4.13549 | −2.3684 | −1.6186 | −1.0365 | −0.5334 |
PFA12 | Are you able to push open a heavy door? | 3.45638 | −2.7039 | −2.0429 | −1.52 | −0.7504 |
PFA14r1 | Are you able to carry a heavy object (over 10 pounds/5 kg)? | 3.43 | −2.21 | −1.74 | −1.25 | −0.66 |
PFB54 | Does your health now limit you in going OUTSIDE the home, for example to shop or visit a doctor’s office? | 3.39556 | −3.286 | −2.2698 | −1.6877 | −1.1944 |
PFA16r1 | Are you able to dress yourself, including tying shoelaces and buttoning up your clothes? | 3.37 | −3.14 | −2.56 | −1.91 | −1.24 |
PF4 | Does your health now limit you in doing heavy work around the house like scrubbing floors, or lifting or moving heavy furniture? | 4.39902 | −1.5594 | −0.9773 | −0.4150 | 0.0586 |
PFA13 | Are you able to exercise for an hour? | 2.95971 | −1.4114 | −0.9872 | −0.415 | 0.3052 |