Table 4.
Emergency events between two groups
| Emergency events | group A | group B | |
|---|---|---|---|
| Sudden death | 1 | 0 | |
| Acute heart failure | 1 | 0 | |
| Asthma attack | 1 | 0 | |
| Vasovagal syncope | 0 | 1 | |
| total | 3%(3/100) | 1%(1/100) | P = 0.621 |
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