Table 2.
Multitrait scaling analyses with Pearson correlations between scale items on EORTC QLQ-CX24
| Scale/items | Item no | Mean ± SD | Cronbach’s α | Item/own scalecorrelation | Item/other scale correlation | Scaling error (%) |
|---|---|---|---|---|---|---|
| Symptom experience | 31–37, 39, 41–43 | 9.62 ± 10.48 | 0.82 | 0.14–0.84 | 0.00–0.78 | 3 (3.4) |
| Body image | 45–47 | 16.43 ± 21.04 | 0.80 | 0.82–0.87 | 0.03–0.76 | 0 (0) |
| Sexual/vaginal functioning | 50–53 | 17.14 ± 19.41 | 0.78 | 0.70–0.86 | 0.00–0.30 | 0 (0) |
| Lymphedema | 38 | 7.25 ± 17.00 | NA | NA | 0.03–0.63 | NA |
| Peripheral neuropathy | 40 | 17.40 ± 19.42 | NA | NA | 0.02–0.61 | NA |
| Menopausal symptoms | 44 | 20.17 ± 23.72 | NA | NA | 0.22–0.57 | NA |
| Sexual worry | 48 | 11.60 ± 28.97 | NA | NA | 0.02–0.37 | NA |
| Sexual activity | 49 | 28.63 ± 35.98 | NA | NA | 0.02–0.37 | NA |
| Sexual enjoyment | 54 | 38.46 ± 28.30 | NA | NA | 0.03–0.50 | NA |
Note: Cronbach’s α ≥0.7 indicates adequate scale reliability.
Abbreviations: EORTC QLQ-CX24, European Organization for Research and Treatment of Cancer Quality of Life questionnaire cervical cancer module; NA, not applicable; SD, standard deviation.