. Author manuscript; available in PMC: 2012 Aug 1.

Published in final edited form as: Circ Arrhythm Electrophysiol. 2011 May 18;4(4):441–447. doi: 10.1161/CIRCEP.110.960658

Table 3. Multivariable odds ratio estimates of SCD ^*.

Categories	OR (95% CI) n = 695

TpTe (1 SD increase)
Among subjects with normal QRSD	1.96 (1.65 – 2.32)
Among subjects with IVCD	3.49 (2.06 – 5.91)

Prolonged QTc vs. normal	2.08 (1.45 – 2.96)

Normal LV function	Ref.
Severe LVSD	3.83 (1.88 – 7.78)
LV function unknown	0.93 (0.65 – 1.33)

Normal QTc defined as ≤ 430 ms for males and ≤ 450 ms for females [14]; IVCD defined as QRSD ≥120 ms; severe LVSD defined as ejection fraction ≤ 35%.

CI, Confidence Interval; LV, Left ventricle; LVSD, Left Ventricular Systolic Dysfunction; OR, Odds Ratio; QRSD, QRS duration; QTc, corrected QT interval; SD, Standard Deviation; SCD, Sudden Cardiac Death; TpTe, Tpeak to Tend interval.

Table 3. Multivariable odds ratio estimates of SCD *.

Table 3. Multivariable odds ratio estimates of SCD ^*.