Table 4.
Maximal Normal Duration of P wave According to Age
| Age | Duration of P Wave |
|---|---|
| From 0 to 12 months | Up to 80 ms (two small squares) |
| Children >1 year to 12 years old | ≥90 |
| Adults | ≥ 110 ms |
| Elderly people | ≥ 120 ms |
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