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. Author manuscript; available in PMC: 2008 Aug 20.
Published in final edited form as: J Cardiovasc Electrophysiol. 2006 Nov;17(11):1230–1238. doi: 10.1111/j.1540-8167.2006.00592.x

Table 4.

Multiple logistic regression analysis of electrophysiological factors predictive of post-CS AF. Post-CS period studied=3 days. Atrial cellular electrophysiological measurements: AP, action potential; APDx, AP duration at the level of x% repolarisation; CI, confidence intervals; ERP, effective refractory period; ICaL, L-type Ca2+ current; Vmax, maximum upstroke velocity. Number of patients with post-CS AF=18/103 for ICaL, 11/79 for all AP measurements, and 9/72 for ERP. In addition to the covariates listed, the multiple regression model included the covariates listed in Table 2.

Electrophysiological
factor		 Units Odds ratio
(95% CI)		 P
ICaL 3 pA/pF 0.93(0.50,1.74) 0.83
AP Vmax 50 V/s 1.07(0.54,2.15) 0.84
AP amplitude 10 mV 1.14(0.59,2.22) 0.70
AP overshoot 10 mV 1.20(0.60,2.42) 0.61
APD50 10 ms 0.93(0.57,1.52) 0.77
APD75 50 ms 0.89(0.42,1.92) 0.77
APD90 50 ms 1.06(0.57,1.95) 0.86
ERP 50 ms 0.83(0.40,1.68) 0.60