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Characteristics of groups
| Total (n = 100) | Group 1A (n = 9) | Group 1B (n = 10) | Group 2 (n = 81) | |
|---|---|---|---|---|
| Male (%) | 60 | 4 (44.4) | 7 (70) | 49 (60.5) |
| Procedure for hydrocephalus prior to CSF shunt (%) | 35 | 5 (55.6) | 5 (50) | 25 (30.9) |
| Revision within a year (%) | 58 | 2 (22.2) | 8 (80) | 48 (59.3) |
| Total number of revisions; mean (min/max) | 2.36 (0/12) | 6.56 (2/12) | 4.5 (1/8) | 1.69 (0/6) |
| Infection within a year (%) | 15 | 1 (11.1) | 4 (40) | 10 (12.3) |
| Deceased (%) | 11 | 0 (0) | 1 (10) | 10 (12.3) |
