Table 3.
Descriptive statistics and reliabilities for subscales of MRB-QoL measure
| MRB-QoL subscales (items) | N | Factor-based score (IQR) | Score range | Cronbach’s α | % Floor | % Ceiling |
| RRC (11 items) | 363 | 24 (15–33) | 11–55 | 0.95 | 0.6 | 13.2 |
| PsyB (six items) | 363 | 21 (16–24) | 6–30 | 0.91 | 2.8 | 3.3 |
| FRL (seven items) | 351 | 19 (14–24) | 7–35 | 0.92 | 1.1 | 6.0 |
| TR (three items) | 367 | 6 (4–9) | 3–15 | 0.87 | 1.4 | 24.8 |
| SB (four items) | 358 | 9 (6–13) | 4–20 | 0.91 | 19.0 | 1.7 |
FRL, Functional and Role Limitation; MRB-QoL, Medication-Related Burden Quality of Life; N, number of respondents; PsyB, Psychological Burden; RRC, Routine and Regimen Complexity; SB, Social Burden; TR, Therapeutic Relationship.