Table 2 Internal consistency and intrascale correlations for the TSQM at baseline and at 12 weeks
Cronbach α | Effectiveness | Side effects | Convenience | |
|---|---|---|---|---|
At baseline (on iloprost) | ||||
Effectiveness | 0.89 | 1.00 | ||
Side effects | 0.93 | 0.21 (p = 0.10) | 1.00 | |
Convenience* | 0.91 | 0.26 (p = 0.03) | 0.13 (p = 0.29) | 1.00 |
Global satisfaction | 0.93 | 0.79 (p < 0.0001) | 0.23 (p = 0.06) | 0.42 (0.0005) |
At 12 weeks (on treprostinil) | ||||
Effectiveness | 0.90 | 1.00 | ||
Side effects | 0.88 | 0.54 (p < 0.0001) | 1.00 | |
Convenience | 0.91 | 0.51 (p < 0.0001) | 0.44 (p = 0.0002) | 1.00 |
Global satisfaction† | 0.93 | 0.78 (p < 0.0001) | 0.52 (p < 0.0001) | 0.73 (p < 0.0001) |