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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Heart Rhythm. 2014 Oct 14;12(1):155–162. doi: 10.1016/j.hrthm.2014.09.044

Figure 4.

Figure 4

Unadjusted (A–C) and adjusted (D-F) associations of P-wave indices and fibrosis. Scatterplots of (A) P-terminal force in V1, (B) P-prime duration in V1, (C) average P-wave duration (Y) against fibrosis index (X). Quadratic best fit line is shown. Cubic restricted splines depicting the association of (D) P-terminal force in V1, (E) P-prime duration in V1, (F) average P-wave duration and fibrosis index, adjusted by age, sex, race, body mass index, LA volumemax index and LV mass index. Dashed lines represent 95% confidence intervals surrounding the estimate.