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Patient age and sex distribution per diagnosis
| Total | Male | Female | Age Range (yr) | Age (Mean) (yr) | Age (SD) (yr) | Age (Median) (yr) | 5 Years of Age or Younger | 1 Year of Age or Younger | Younger than 1 Year of Age | |
|---|---|---|---|---|---|---|---|---|---|---|
| Ventriculomegaly | 84 | 44 | 40 | 0.003–17.63 | 3.28 | 4.64 | 1.05 | 65/84 (77%) | 57/84 (68%) | 41/84 (49%) |
| Macrocephaly | 18 | 13 | 5 | 0.2–4.42 | 1.26 | 1.09 | 0.98 | 18/18 (100%) | 14/18 (78%) | 9/18 (50%) |
| Cyst | 20 | 8 | 12 | 0.3–17.47 | 4.72 | 4.68 | 4.84 | 14/20 (70%) | 8/20 (40%) | 7/20 (35%) |
