Table 2 Baseline Conduction Abnormalities Stratified by Age. Frequency of conduction abnormalities stratified by age. Age stratifications based on those used in the NHS study
NHS baseline data (Criteria: Surawicz et al.) | |||||
|---|---|---|---|---|---|
% of All ECGs (N = 106) | 4–8 yr (n = 18) | 9–16 yr (n = 40) | 17–24 yr (n = 23) | 25–56 yr (n = 25) | |
Conduction Abnormality | 45.3% | 72.2% | 62.5% | 8.7% | 32.0% |
Intraventricular Conduction Delay | 37.7% | 72.2% | 47.5% | 16.7% | 24.0% |
Right Bundle Branch Block | 4.7% | 0% | 12.5% | 0% | 0% |
Incomplete Right Bundle Branch Block | 1.9% | 0% | 2.5% | 0% | 4.0% |
First Degree AV Block | 0.9% | 0% | 0% | 0% | 4.0% |