Statistical analysis

NP Naga Venkata K. Pothineni
TC Tharian Cherian
NP Neel Patel
JS Jeffrey Smietana
DF David S. Frankel
RD Rajat Deo
AE Andrew E. Epstein
FM Francis E. Marchlinski
RS Robert D. Schaller
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Categorical variables are summarized with frequencies (percentages) and continuous data are summarized using mean and standard deviation values. Categorical variables were compared using a chi-squared test or Fisher’s exact test. Continuous variables were compared using Student’s t-test. P < 0.05 was considered to be statistically significant. All analyses were performed with SPSS version 11.0 (IBM Corporation, Armonk, NY, USA).

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