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. 2003 Sep 30;8(4):296–301. doi: 10.1046/j.1542-474X.2003.08406.x

Table 4.

The Table Compares MI Patients with and without Reduced Left Ventricular Ejection Fraction (EF < 45%) Regarding the Distribution of Pathological Heart Rate Turbulence Values

EF < 45% n = 48 EF > 45% n = 148 P
TO −0.6 ± 3.1  −2.5 ± 5.5  <0.02
TS 4.6 ± 3.3 5.2 ± 3.8 n.s.
TO > 0% 18 (39%) 34 (24%) <0.05
TS < 2.5 ms 13 (28%) 39 (27%) n.s.

EF: left ventricular ejection fraction; TO: turbulence onset; TS: turbulence slope; P value < 0.05 is considered as significant.