Factors in OTSWI |
Item |
Item Scale Correlation |
Cronbach’s Alfa |
1. Fatigue (F) |
I am physically tired |
.81 |
.90 |
I have no energy |
.82 |
I feel lazy and listless |
.83 |
2. Joint and muscle pain (JMP) |
My muscles are aching |
.81 |
.87 |
My joints are aching |
.79 |
My legs are aching |
.72 |
3. Cognitive functioning (CF) |
I have difficulties to remember |
.89 |
.84 |
I find it hard to concentrate |
.66 |
4. Basic ADL (BADL) |
Due to my physical condition I can’t get dressed by myself |
.98 |
.92 |
Due to my physical condition I can’t take a bath or shower |
.96 |
Due to my physical condition I can’t buy food by my self |
.84 |
5. Sleeping problems (SP) |
I have difficulties with falling asleep |
.87 |
.89 |
I sleep poorly |
.88 |
I wake up during the night |
.83 |
6. Mood (M) |
I feel irritated |
.74 |
.82 |
I feel angry
|
.86 |
7. Foot pain (FP) |
There is a burning ache in my feet |
.86 |
.81 |
There is a numb and stabbing feeling in my feet |
.88 |
8. Economy (E) |
I worry about not being able to keep my job due to my health condition |
.88 |
.81 |
I worry about my economy due to my health condition |
.84 |