Fig. 2

Top left: Comparison of the maximum QT interval in patients with a sequential disability (+) and without a sequential disability (−).Top right: Comparison of the corrected maximum QT interval in patients both with (+) and without a sequential disability (−). Middle left: Comparison of the maximum QT dispersion in patients both with (+) and without a sequential disability (−). Middle right: Comparison of the corrected QT dispersion in patients both with (+) and without a sequential disability (−). Bottom left: Comparison of the carboxyhemoglobin levels in patients both with (+) and without a sequential disability (−). Bottom right: Comparison of the troponin I level in patients both with (+) and without a sequential disability (−). There was no significant difference in the carboxyhemoglobin levels between the patients both with and without a sequential disability, whereas all the other comparisons were significantly different