Table 4.
Age difference between cases with first and recurrent operations
| First operation | Recurrent operation | Test of significance | |
|---|---|---|---|
| N = 29 | N = 6 | ||
| Age / years | 25.01 ± 12.6 | 24.52 ± 13.25 | t = 0.086 |
| p = 0.93 |
t: Student t test
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