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The incidence of intracranial infection and hydrocephalus between the two groups, n (%）
| N | The incidence of intracranial infection | The incidence of hydrocephalus | |
|---|---|---|---|
| Study group | 35 | 1(2.9) | 2(5.7) |
| Control group | 79 | 15(19.0) | 17(21.5) |
| x2 | 3.979 | 4.362 | |
| P | 0.046 | 0.037 |
Note: N, numberof patients.
