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Table 7 Frequency distribution of abnormal ECG findings according to sporting characteristics of athletes

From: Electrocardiographic pattern of apparently healthy African adolescent athletes in Nigeria

Sporting Characteristics Abnormal ECG Total n(%) Test Statistic
No n(%) Yes n(%)
Number of sporting disciplines
 ≤ 2 73 (49.5) 73 (50.5) 146 χ2 = 0.860
 > 2 20 (51.1) 14 (48.9) 34 p = 0.354
 Total 93 (51.7) 87 (48.3) 180  
Cadre of competitive participation
 Intra-school and inter-school 38 (46.9) 43 (53.1) 81 χ2 = 1.332
 Intra-school alone 55 (55.6) 44 (44.4) 99 p = 0.248
 Total 93 (51.7) 87 (48.3) 180  
No of training days per week
 ≤ 3 64 (50.8) 52 (49.2) 116 χ2 = 1.606
 > 3 29 (52.2) 35 (47.8) 64 p = 0.205
 Total 93 (51.7) 87 (48.3) 180  
Duration of regular training: no of hours per week
 ≤ 3 84 (53.5) 76 (46.5) 160 χ2 = 0.525
 > 3 5 (47.3) 7 (52.7) 12 p = 0.469
 Total 89 (51.7) 83 (48.3) 172