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Table 2 Multivariate analysis of various factors for predicting severe corrected QT prolongation in 100 subarachnoid hemorrhage patients

From: Multivariate analysis of risk factors for QT prolongation following subarachnoid hemorrhage

Analyses

Relative risk (95% CI)

P

Analysis 1

  

Female sex

3.69 (1.27–10.73)

<0.02

Serum potassium (for each 1 mmol/l)

0.13 (0.04–0.43)

<0.001

Analysis 2

  

Female sex

4.45 (1.55–12.78)

<0.01

Hypokalemia (serum potassium <3.5 mmol/l)

4.53 (1.79–11.50)

<0.002

  1. Potential prognostic factors were selected from Table 1. CI, confidence interval.