Proportion of Rett syndrome cohort categorised according to age and clinical characteristics with prolonged QTc
| Patient characteristic | Prolonged QTc | p Value | Odds ratio | 95% CI |
|---|---|---|---|---|
| Age > 12 years | 3/11 | 1.0 | 1.0 | 0.4 to 3.0 |
| Classic Rett syndrome | 9/30 | 0.6 | 1.2 | 1.0 to 1.4 |
| Seizure disorder | 4/21 | 0.3 | 0.7 | 0.3 to 1.4 |
| Lack of mobility | 2/15 | 0.2 | 0.4 | 0.1 to 1.5 |
CI, confidence intervals.