Table 2

Proportion of Rett syndrome cohort categorised according to age and clinical characteristics with prolonged QTc

Patient characteristicProlonged QTcp Value Odds ratio95% CI
Age > 12 years3/111.01.00.4 to 3.0
Classic Rett syndrome9/300.61.21.0 to 1.4
Seizure disorder4/210.30.70.3 to 1.4
Lack of mobility2/150.20.40.1 to 1.5
  • CI, confidence intervals.