T wave Abnormalities Inverted T wave

| Age_ethnicity | n | V1 | V2 | V3 | V4 | V5 | V6_ |
|---|---|---|---|---|---|---|---|
| 1 week - 1 y | 210 | 92% | 74% | 27% | 20% | 0.5% | 0% |
| 1 y - 2 y | 154 | 96% | 85% | 39% | 10% | 0.7% | 0% |
| 2 y - 5 y | 202 | 98% | 50% | 22% | 7% | 1% | 0% |
| 5 y - 8 y | 94 | 91% | 25% | 14% | 5% | 1% | 1% |
| 8 y - 16 y | 90 | 62% | 7% | 2% | 0% | 0% | 0% |
| Males |  |  |  |  |  |  |  |
| 12 y - 13 y | 209 | 47% | 7% | 0% | 0% | 0% | 0% |
| 13 y - 14 y | 260 | 35% | 4.6% | 0.8% | 0% | 0% | 0% |
| 16 y - 19 y (whites) | 50 | 32% | 0% | 0% | 0% | 0% | 0% |