Table 3.
Corrected item to total correlation and scale internal reliability consistency on the EHP-30 (core questionnaire)
| Scale item | Corrected item to total correlation |
|---|---|
| Pain scale (alpha=0.85, n=100) | |
| P1:Unable to go to social events | 0.62 |
| P2:Unable to do jobs at home | 0.72 |
| P3:Found it difficult to stand | 0.72 |
| P4: Difficult to sit | 0.34 |
| P5: Found it difficult to walk | 0.67 |
| P6:Difficult to exercise | 0.58 |
| P7:lost appetite/unable to eat | 0.73 |
| P8:Be unable to sleep | 0.69 |
| P9:Had to lie down or go to bed | 0.71 |
| P10: Unable to do things you want | 0.68 |
| P11:Felt unable to cope with pain | 0.67 |
| Control and powerlessness scale(alpha=0.93n=100) | |
| C&P1:Generally felt unwell | 0.59 |
| C&P2:Symptoms not getting better | 0.75 |
| C&P3:Not able to control symptoms | 0.90 |
| C&P4:Felt unable to forget symptoms | 0.90 |
| C&P5:Felt symptoms ruling your life | 0.90 |
| C&P6:Felt symptoms taking away life | 0.76 |
| Emotional well-being scale (alpha=0.86 n=100) |
|
| E1:Felt depressed | 0.73 |
| E2:Felt weepy/tearful | 0.75 |
| E3:Felt miserable | 0.67 |
| E4:Had mood swing | 0.63 |
| E5:Felt bad or short-tempered | 0.68 |
| E6:Felt aggressive or violent | 0.48 |
| Social support scale (alpha=0.88 n=100) | |
| S1:Unable to tell people how you feel | 0.80 |
| S2:Felt others do not understand | 0.78 |
| S3:Felt others think you are complaining |
0.73 |
| S4:Felt alone | 0.68 |
| Self-image scale (alpha=0.80 n=100) | |
| Self1:Can not wear clothes you choose | 0.66 |
| Self2: Appearance has been affected |
0.75 |
| Self3:lacked confidence | 0.54 |