Table 3.
Relative Risks of Various ERP Patterns for SCA, Cardiac Death, and Death From Any Cause
| SCA | Cardiac Death | Death From Any Cause | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ERP (+) (Events/Subjects) | ERP (−) (Events/Subjects) | RR (95% CI) | P Value | ERP (+) (Events/Subjects) | ERP (−) (Events/Subjects) | RR (95% CI) | P Value | ERP (+) (Events/Subjects) | ERP (−) (Events/Subjects) | RR (95% CI) | P Value | |
| J‐point elevation | ||||||||||||
| ≧0.1 mV | 245/4436 | 1170/36 409 | 2.18 (1.29‐3.68) | 0.003 | 467/5502 | 5300/65 412 | 1.48 (1.06‐2.07) | 0.02 | 2591/10 973 | 43 309/280 364 | 1.21 (1.02‐1.42) | 0.03 |
| ≧0.1 mV in inferior leads | 72/859 | 838/15 280 | 2.06 (1.31‐3.22) | 0.002 | 199/1557 | 4679/54 727 | 1.76 (1.14‐2.74) | 0.01 | 412/975 | 7038/16 637 | 1.41 (1.05‐1.89) | 0.02 |
| ≧0.1 mV in lateral leads | 30/906 | 838/15 280 | 1.05 (0.64‐1.71) | 0.86 | 123/1181 | 4679/54 727 | 1.35 (0.95‐1.94) | 0.10 | 255/617 | 7038/16 637 | 1.21 (1.07‐1.36)) | 0.002 |
| ≧0.1 mV in both inferior and lateral leads | 19/509 | 792/15 070 | 2.74 (1.69‐4.44) | <0.001 | 10/79 | 2242/15 635 | 1.36 (0.74‐2.48) | 0.32 | 27/79 | 6982/15 635 | 1.20 (0.85‐1.69) | 0.30 |
| ≧0.2 mV | 14/72 | 756/10 310 | 2.68 (1.49‐4.84) | 0.001 | 31/141 | 1833/11 236 | 2.99 (1.41‐6.34) | 0.004 | 57/141 | 5786/11 236 | 1.46 (1.12‐1.89) | 0.005 |
| ≧0.2 mV in inferior leads | 8/36 | 736/10 234 | 2.92 (1.45‐5.89) | 0.003 | 17/36 | 1820/10 234 | 2.98 (1.83‐4.86) | <0.001 | 28/36 | 5730/10 234 | 1.54 (1.06‐2.24) | 0.02 |
| ≧0.2 mV in lateral leads | 2/31 | 736/10 234 | 0.87 (0.22‐3.48) | 0.84 | 9/31 | 1820/10 234 | 1.61 (0.83‐3.11) | 0.16 | 22/31 | 5730/10 234 | 1.26 (0.82‐1.93) | 0.29 |
| Configuration | ||||||||||||
| Notching | 57/1180 | 814/15 227 | 1.46 (1.18‐1.80) | 0.001 | 52/599 | 2401/35 020 | 1.77 (1.33‐2.37) | <0.001 | 98/307 | 1308/6403 | 2.12 (1.15‐3.91) | 0.02 |
| Slurring | 51/520 | 814/15 227 | 1.60 (0.99‐2.58) | 0.06 | 81/991 | 2401/35 020 | 1.21 (0.96‐1.52) | 0.11 | 169/672 | 1308/6403 | 1.19 (1.03‐1.37) | 0.02 |
| ST segment | ||||||||||||
| Rapidly ascending | 35/299 | 808/10 793 | 1.01 (0.72‐1.41) | 0.94 | 51/720 | 1961/29 619 | 1.07 (0.77‐1.48) | 0.70 | 110/701 | 90/1259 | 1.25 (0.95‐1.64) | 0.11 |
| Horizontal or descending | 56/485 | 772/10 684 | 2.03 (1.10‐3.74) | 0.02 | 9/103 | 13/1002 | 6.93 (2.76‐17.43) | <0.001 | 71/310 | 90/1259 | 2.29 (1.52‐3.45) | <0.001 |
ERP indicates early repolarization pattern; RR indicates relative risk; SCA, sudden cardiac arrest.