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. 2012 Aug 2;7(8):e42037. doi: 10.1371/journal.pone.0042037

Table 3. Correlation between electrocardiographic PR and QRS width and end-systolic volumes of RV and LV.

correlationcoefficient, R P value*
PR vs. RVESV 0.21 0.014
QRS vs. RVESV 0.24 0.006
PR vs. LVESV 0.25 0.005
QRS vs. LVESV 0.26 0.003

LVESV, left ventricular end-systolic volume; RVESV, right ventricular end-systolic volume.

*

P value calculated with linear regression analysis.