Table 2.
Results of the item-total correlation analysis in the item reduction phase (N = 40)
| Item | Scale mean if item deleted | Scale variance if item deleted | Corrected item-total correlation | Cronbach’s alpha if item deleted |
|---|---|---|---|---|
| Q1 Itching |
15.48 |
77.18 |
0.48 |
0.88 |
| Q2 Itching accompanied by pain |
16.60 |
74.35 |
0.60 |
0.87 |
| Q3 Pain |
17.03 |
74.74 |
0.54 |
0.88 |
| Q4 Itching aggravated at night |
15.68 |
73.82 |
0.51 |
0.88 |
| Q5 Dry skin |
15.45 |
75.90 |
0.57 |
0.87 |
| Q6 Night sweats |
17.10 |
80.66 |
0.20* |
0.89 |
| Q7 Burning skin |
16.75 |
72.30 |
0.55 |
0.88 |
| Q8 Fatigue |
16.80 |
73.20 |
0.56 |
0.87 |
| Q9 Fidgeting |
16.63 |
69.68 |
0.72 |
0.87 |
| Q10 Irascibility |
16.75 |
69.73 |
0.67 |
0.87 |
| Q11 Insomnia |
17.00 |
73.13 |
0.58 |
0.87 |
| Q12 Mouth dryness |
16.88 |
5.80 |
0.58 |
0.87 |
| Q13 Thirst |
16.95 |
74.77 |
0.62 |
0.87 |
| Q14 Dark urine |
16.98 |
74.38 |
0.58 |
0.87 |
| Q15 Constipation | 17.15 | 78.18 | 0.39 | 0.88 |
*Note: Q6 night sweats was deleted (Corrected Item-Total Correlation = 0.195).