Table 2.
T-score and internal consistency reliability of PROMIS-29 Profile V2.1 domain
| T-score Mean (SD) | Cronbach's α | Item-rest correlation | |
|---|---|---|---|
| Physical function | 45.9 (9.0) | 0.91 | |
| Are you able to do chores such as vacuuming or yard work? | 0.71 | ||
| Are you able to go up and down stairs at a normal pace? | 0.78 | ||
| Are you able to go for a walk of at least 15 min? | 0.83 | ||
| Are you able to run errands and shop? | 0.88 | ||
| Anxiety | 50.5 (9.1) | 0.87 | |
| In the past 7 days, I felt fearful | 0.73 | ||
| In the past 7 days, I found it hard to focus on anything other than my anxiety | 0.70 | ||
| In the past 7 days, my worries overwhelmed me | 0.74 | ||
| In the past 7 days, I felt uneasy | 0.74 | ||
| Depression | 49.5 (7.7) | 0.85 | |
| In the past 7 days, I felt worthless | 0.67 | ||
| In the past 7 days, I felt helpless | 0.73 | ||
| In the past 7 days, I felt depressed | 0.69 | ||
| In the past 7 days, I felt hopeless | 0.67 | ||
| Fatigue | 47.0 (8.8) | 0.88 | |
| During the past 7 days, I feel fatigued | 0.71 | ||
| During the past 7 days, I have trouble starting things because I am tired | 0.67 | ||
| In the past 7 days, how run-down did you feel on average? | 0.77 | ||
| In the past 7 days, how fatigued were you on average? | 0.81 | ||
| Sleep Disturbance | 50.8 (8.5) | 0.80 | |
| In the past 7 days, my sleep quality was… | 0.62 | ||
| In the past 7 days, my sleep was refreshing | 0.50 | ||
| In the past 7 days, I had a problem with my sleep | 0.69 | ||
| In the past 7 days, I had difficulty falling asleep | 0.64 | ||
| Ability to participate in social roles and activities | 51.2 (10.7) | 0.94 | |
| I have trouble doing all of my regular leisure activities with others | 0.82 | ||
| I have trouble doing all of the family activities that I want to do | 0.84 | ||
| I have trouble doing all of my usual work (include work at home) | 0.84 | ||
| I have trouble doing all of the activities with friends that I want to do | 0.89 | ||
| Pain Interference | 58.0 (8.5) | 0.95 | |
| In the past 7 days, how much did pain interfere with your day to day activities? | 0.84 | ||
| In the past 7 days, how much did pain interfere with work around the home? | 0.91 | ||
| In the past 7 days, how much did pain interfere with your ability to participate in social activities? | 0.89 | ||
| In the past 7 days, how much did pain interfere with your household chores? | 0.88 | ||
| Pain intensity |