13 November 2025 : Clinical Research
Quality of Life Among Polish Patients with Multiple Myeloma: A Cross-Sectional Study
Magdalena Kurek
ABCDEF 1, Tomasz Tatara ADEF 1, Jakub Świtalski CDEF 2*, Anna Augustynowicz DE 3,4, Barbara Łopyta DE 5, Mariusz Gujski DE 1, Adam Fronczak ADEF 6
DOI: 10.12659/MSM.948998
Med Sci Monit 2025; 31:e948998
Table 4 Internal consistency of European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (version 3.0) scales.
| Scale | Cronbach alpha | Number of items |
|---|---|---|
| General health status | 0.948 | 2 |
| Physical functioning | 0.845 | 5 |
| Functioning in roles | 0.868 | 2 |
| Emotional functioning | 0.824 | 4 |
| Cognitive functioning | 0.811 | 2 |
| Social functioning | 0.683 | 2 |
| Fatigue | 0.884 | 3 |
| Nausea and vomiting | 0.784 | 2 |
| Pain | 0.847 | 2 |