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| Parameter | CHD | Control | P |
|---|---|---|---|
| Sample (n) | 400 | 420 | – |
| Male/Female (n) | 179/221 | 183/237 | |
| Age (years) | 15.53 ± 18.10 | 14.98 ± 9.86 | 0.207 |
Data are shown as mean ± SD between the two groups; there were no statistical differences of the age and gender composition.
