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==Prevalence of ECG abnormalities in atheletes==
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{| class="wikitable" style="font-size:90%;"
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|+'''Table 3: Prevalence of ECG abnormalities in an unselected population of 32 652 young individuals undergoing the pre-participation cardiovascular screening'''
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{| width="100%" cellspacing="10"
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| align="left" valign="top" | ECG abnormalities
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| align="left" valign="top" | Athletes, ''n'' (%)
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|-
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| colspan="2" |
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----
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|-
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| align="left" valign="top" | Negative T-waves in precordial/standard leads
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| align="left" valign="top" | 751 (2.3)
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|-
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| align="left" valign="top" | RBBB
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| align="left" valign="top" | 351 (1.0)
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|-
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| align="left" valign="top" | Increased R/S wave voltages (suggestive of LVH)
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| align="left" valign="top" | 247 (0.8)
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|-
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| align="left" valign="top" | Left anterior fascicular block
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| align="left" valign="top" | 162 (0.5)
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|-
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| align="left" valign="top" | Pre-excitation pattern
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| align="left" valign="top" | 42 (0.1)
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|-
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| align="left" valign="top" | LBBB
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| align="left" valign="top" | 19 (0.1)
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|-
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| align="left" valign="top" | Prolonged corrected QT interval
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| align="left" valign="top" | 1 (0.003)
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|-
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| align="left" valign="top" | Others (incomplete RBBB, prolonged PR interval, early repolarization pattern)
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| align="left" valign="top" | 2280 (7.0)
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|-
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| align="left" valign="top" | Total
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| align="left" valign="top" | 3853 (11.8)
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RBBB, right bundle branch block; LVH, left ventricular hypertrophy; LBBB, left bundle branch block.
    
==References==
 
==References==
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