Table 1.
Results of 12 lead resting and exercise electrocardiography in people screened before taking part in competitive sports. Figures are number (percentage) of participants
| All (n=30 065) | Men (n=23 570) | Women (n=6495) | P value (men v women) | |
|---|---|---|---|---|
| Resting electrocardiography | ||||
| Normal | 28 253 (94) | 22 000 (93.3) | 6253 (96.3) | <0.001 |
| PVBs | 120 (0.4) | 95 (0.4) | 25 (0.4) | 0.9 |
| PSVBs | 30 (0.1) | 24 (0.1) | 6 (0.09) | 0.9 |
| PEP | 27 (0.09) | 21 (0.09) | 6 (0.09) | 0.7 |
| First degree AVB | 30 (0.1) | 24 (0.1) | 6 (0.09) | 0.9 |
| Second degree AVB | 3 (0.01) | 3 (0.01) | — | — |
| LABB | 6 (0.02) | 5 (0.02) | 1 (0.01) | 0.8 |
| RBBB | 331 (1.1) | 306 (1.3) | 25 (0.4) | <0.001 |
| Sinus bradycardia | 872 (2.9) | 754 (3.2) | 118 (1.8) | <0.001 |
| Incomplete RBBB | 210 (0.7) | 189 (0.8) | 21 (0.3) | <0.001 |
| ERP | 21 (0.07) | 19 (0.08) | 2 (0.03) | 0.2 |
| ST-T alterations | 150 (0.5) | 118 (0.5) | 32 (0.5) | 0.9 |
| Wandering PM | 3 (0.01) | 3 (0.01) | — | — |
| Junctional rhythm | 3 (0.01) | 3 (0.01) | — | — |
| AF | 6 (0.02) | 6 (0.03) | — | — |
| Exercise electrocardiography | ||||
| Normal | 28 606 (95.1) | 22 632 (96) | 5974 (92) | <0.001 |
| Isolated PVBs | 815 (2.7) | 524 (2.2) | 291 (4.5) | <0.001 |
| Isolated PSVBs | 467 (1.6) | 319 (1.4) | 148 (2.3) | <0.001 |
| Paired PVBs | 58 (0.2) | 33 (0.1) | 25 (0.4) | <0.001 |
| Paired PSVBs | 31 (0.1) | 14 (0.06) | 17 (0.3) | <0.001 |
| NSTV | 3 (0.01) | 2 (0.009) | 1 (0.01) | 0.6 |
| SVT | 3 (0.01) | 2 (0.009) | 1 (0.01) | 0.6 |
| ST-T alterations | 54 (0.2) | 26 (0.1) | 28 (0.4) | <0.001 |
| Second degree AVB | 8 (0.03) | 7 (0.03) | 1 (0.01) | 0.5 |
| RBBB | 20 (0.07) | 11 (0.05) | 9 (0.1) | 0.01 |
PVBs=premature ventricular beats; PSVBs=premature supraventricular beats; PEP=pre-excitation pattern; AVB=atrioventricular block; LABB=left anterior bundle block; RBBB=right bundle branch block; ERP=early repolarisation pattern; PM=pacemaker; AF=atrial fibrillation; NSTV=non-sustained ventricular tachycardia; SVT=sustained ventricular tachycardia.