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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

Table 2.

Difference (95%CI) in P-wave indices by LV fibrosis index deciles

Model Per 1 decile of LV fibrosis index P
PTFV1, mV*ms 1 −0.57(−1.22 to +0.08) 0.086
2 −0.62(−1.23 to +0.03) 0.061
3 −0.76(−1.42 to −0.09) 0.025
P-prime amplitude in V1,µV 1 −4.86(−13.46 to +3.73) 0.264
2 −5.68(−14.21 to +2.85) 0.189
3 −7.12(−15.90 to +1.66) 0.110
P-prime duration in V1,ms 1 +12.34(+3.91 to +20.77) 0.005
2 +14.39(+6.05 to +22.71) 0.001
3 +15.34(+6.88 to +23.79) 0.001
PR interval,ms 1 −1.26(−15.29 to +12.78) 0.859
2 −5.39(−19.05 to +8.28) 0.435
3 −5.79(−19.39 to +7.79) 0.398
Average P-duration,ms 1 +4.76(+0.30 to +9.22) 0.0373
2 +5.06(+0.65 to +9.46) 0.0253
3 +5.42(+0.87 to +9.97) 0.020
P-axis,deg 1 +6.37(−4.87 to +17.62) 0.263
2 −1.00(−8.19 to +6.19) 0.782
3 +1.39(−6.21 to +8.99) 0.716

General linear models. Model1 is adjusted for age, race, sex, and body mass index. Model 2 includes variables from Model 1 and LA Volumemax index. Model 3 includes variables from Model 2, and scar and LV mass index.