Component loadings after rotation in the Slovenian version of Multiple Sclerosis Quality of Life-54 questionnaire validation study (n=134)_
| Rotated factor loadings | ||
|---|---|---|
| Subscale | Component 1 Mental component | Component 2 Physical component |
| Physical health | 0.129 | 0.854 |
| Role limitations due to physical problems | 0.184 | 0.792 |
| Role limitations due to emotional problems | 0.472 | 0.475 |
| Pain | 0.275 | 0.570 |
| Emotional well-being | 0.874 | 0.104 |
| Energy | 0.750 | 0.407 |
| Health perceptions | 0.415 | 0.536 |
| Social function | 0.474 | 0.654 |
| Cognitive function | 0.754 | 0.174 |
| Health distress | 0.698 | 0.320 |
| Sexual function | 0.202 | 0.590 |
| Overall quality of life | 0.701 | 0.432 |
Characteristics of the multiple sclerosis (MS) patients for validation of the Slovenian version of Multiple Sclerosis Quality of Life-54 questionnaire (n=134)_
| Characteristic | Category | No. (%)/Median; Min-Max; Q1-Q3 |
|---|---|---|
| Education | Primary | 16 (11.9) |
| Secondary | 94 (70.1) | |
| College or higher | 24 (17.9) | |
| Employment status | Employed | 63 (47.0) |
| Unemployed | 18 (13.4) | |
| Retired | 53 (39.6) | |
| Marital status | Single | 44 (32.8) |
| Married/ | 90 (67.2) | |
| cohabiting | ||
| Area of living | Rural | 80 (59.7) |
| Urban | 54 (40.3) | |
| Disease duration (years) | 8; 0-33; 4-12.25 | |
| Disease course | Primary progressive | 6 (4.5) |
| Secondary progressive | 23 (17.2) | |
| Relapsing-remitting | 105 (78.4) | |
| Clinical worsening of the disease clinical worsening of the disease in the past year prior the neurological examination, excluding the period of 30 days prior the examination (a relapse of relapsing-remitting type of MS or an increase of the EDSS score by 1 point in progressive type of MS; EDSS – Expanded Disability Status Scale score | Yes | 51 (38.1) |
| No | 83 (61.9) | |
| Immunomodulatory therapy | Yes | 92 (68.7) |
| No | 42 (31.3) | |
| EDSS | 3.0; 0.0-8.0; 1.625-4.5 |
Statistical description and the Cronbach’s Alpha (α) for the Slovenian version of Multiple Sclerosis Quality of Life-54 questionnaire subscales/single item measures (n=134)_
| Subscale/Item | N of items | Mean | SD | α |
|---|---|---|---|---|
| Subscales | ||||
| Physical health | 10 | 55.7 | 29.6 | 0.94 |
| Role limitations due to physical problems | 4 | 33.1 | 41.0 | 0.90 |
| Role limitations due to emotional problems | 3 | 62.7 | 41.3 | 0.83 |
| Pain | 3 | 65.9 | 24.0 | 0.89 |
| Emotional well-being | 5 | 74.4 | 15.9 | 0.84 |
| Energy | 5 | 55.2 | 19.2 | 0.84 |
| Health perceptions | 5 | 44.6 | 14.8 | 0.58 |
| Social function | 3 | 72.8 | 19.3 | 0.68 |
| Cognitive function | 4 | 71.4 | 23.2 | 0.91 |
| Health distress | 4 | 72.0 | 19.9 | 0.85 |
| Sexual function | 4 | 71.4 | 28.2 | 0.90 |
| Overall quality of life | 2 | 67.8 | 15.9 | 0.86 |
| Single-item measures | ||||
| Change in health α was not computed because the scale is based on a single item. | 1 | 45.3 | 22.6 | |
| Satisfaction with sexual function α was not computed because the scale is based on a single item. | 1 | 61.4 | 25.7 |
The total number and percentage of missing answers within a subscale/single item measure in the Slovenian version of Multiple Sclerosis Quality of Life-54 questionnaire validation study_
| Subscale/Item | N of items | Total N of answers | N of missing answers | % of missing answers |
|---|---|---|---|---|
| Subscales | ||||
| Physical health | 10 | 1323 | 17 | 1.3 |
| Role limitations due to physical problems | 4 | 525 | 11 | 2.1 |
| Role limitations due to emotional problems | 3 | 396 | 6 | 1.5 |
| Pain | 3 | 397 | 5 | 1.2 |
| Emotional well-being | 5 | 655 | 15 | 2.2 |
| Energy | 5 | 660 | 10 | 1.5 |
| Health perceptions | 5 | 664 | 6 | 0.9 |
| Social function | 3 | 395 | 7 | 1.7 |
| Cognitive function | 4 | 531 | 5 | 0.9 |
| Health distress | 4 | 532 | 4 | 0.8 |
| Sexual function | 4 | 520 | 16 | 3.0 |
| Overall quality of life | 2 | 264 | 4 | 1.5 |
| Single-item measures | ||||
| Change in health | 1 | 133 | 1 | 0.8 |
| Satisfaction with sexual function | 1 | 129 | 5 | 3.7 |