Table 4 Internal consistency, reliability and construct validity of SProND categories
Symptom scale | No of items | Cronbach's alpha | Intraclass correlation | 95% C.I | p-value |
|---|---|---|---|---|---|
Neurobehavioural | 2 | 0.60 | 0.60 | 0.12–0.66 | 0.004 |
Movements and mobility related | 3 | 0.87 | 0.87 | 0.77–0.93 | < 0.001 |
Breathing and swallowing | 3 | 0.85 | 0.85 | 0.73–0.92 | < 0.001 |
Daily activities | 6 | 0.70 | 0.67 | 0.48–0.81 | < 0.001 |
Total symptom score | 14 | 0.86 | 0.85 | 0.76–0.91 | < 0.001 |