Table 4 Prevalence of borderline ECG findings in the male and female marathon runners
|  | Men (n = 9897) | Women(n = 3182) | Total(n = 13,079) | P* |
|---|---|---|---|---|
n % | n % | n % | ||
Right axis deviation | 176 1.78% | 28 0.88% | 204 1.56% | < 0.01 |
Left axis deviation | 98 0.99% | 9 0.28% | 107 0.82% | < 0.01 |
Left atrial enlargement | 70 0.71% | 22 0.69% | 92 0.70% | > 0.05 |
Right atrial enlargement | 55 0.56% | 16 0.50% | 70 0.54% | > 0.05 |
Complete RBBB | 18 0.18% | 1 0.03% | 19 0.15% | < 0.05 |
Any of the above findings | 386 3.90% | 66 2.07% | 452 3.46% | < 0.01 |