Table 2. Electrocardiographic Characteristics of Patients With and Without Wellens’ Sign.

	Wellens’ sign (n = 24)	Control (n = 250)	P value
Heart rate (beat/min)	81 (73 - 95)	79 (71 - 92)	0.74
Atrial fibrillation	2 (8.3)	7 (2.8)	0.18
Biphasic T wave at leads V2 and V3	10 (41.7)	0 (0.0)	< 0.001
Symmetrically inverted T wave (≥ 0.10 mV) in leads V2 and V3	14 (58.3)	0 (0.0)	< 0.001
Symmetrically inverted T wave (≥ 0.20 mV) in leads V2 and V3	11 (45.8)	0 (0.0)	< 0.001
Symmetrically inverted T wave (≥ 0.30 mV) in leads V2 and V3	4 (16.7)	0 (0.0)	< 0.001
Biphasic or symmetrically inverted T wave (≥ 0.10 mV) in lead V1	14 (58.3)	71 (28.4)	0.002
Biphasic or symmetrically inverted T wave (≥ 0.10 mV) in lead V4	18 (75.0)	25 (10.0)	< 0.001
Biphasic or symmetrically inverted T wave (≥ 0.10 mV) in lead V5	12 (50.0)	30 (12.0)	< 0.001
Biphasic or symmetrically inverted T wave (≥ 0.10 mV) in lead V6	8 (33.3)	27 (10.8)	0.005
ST segment depression (≥ 0.05 mV)	1 (4.2)	81 (32.4)	0.004
Anterior ST depression (V1 - V4)	1 (4.2)	27 (10.8)	0.49
Lateral ST depression (I, aVL,V5, and V6)	1 (4.2)	67 (26.8)	0.014
Inferior ST depression (II, III, and aVF)	0 (0.0)	35 (14.0)	0.053

Data are expressed as a number (percent) or median (interquartile range).