Table 2:

Comparison of imaging and clinical characteristics between patient groups by the presence of a tegmental brainstem dysplasia (severe brainstem malformation)

VariableTegmental Brainstem Dysplasia (No.) (%)OR (95% CI)P Value
Present (Severe Group)Absent (Mild Group)
Mortality7 (46.7%)8 (15.1%)4.922 (1.392–17.399).01a
Severe macrocrania10 (62.5%)14 (24.6%)5.119 (1.576–16.629).004b
Prematurity6 (42.87%)14 (34.4%)1.446 (0.419–4.997).559a
Genetic abnormalities5 (31.2%)17 (29.8%)1.912 (0.319–11.471).677b
Bulbar dysfunction12 (75%)20 (36.4%)5.250 (1.492–18.470).006a
Enteral feeding tube dependency12 (75%)28 (50.9%)2.893 (0.830–10.087).087a
Seizure11 (68.%)20 (35.7%)3.960 (1.205–13.018).019a
Extreme vermian hypoplasia9 (56.25%)3 (5.3%)23.143 (5.034–106.401)<.001b
Cerebellar dysplasia11 (68.8%)16 (28.1%)5.638 (1.690–18.805).003a
Hydrocephalus13 (81.3%)30 (52.6%)3.900 (1.002–15.177).04a
Corpus callosum agenesis12 (75.0%)25 (43.9%)3.840 (1.104–13.358).028a
Interhemispheric cyst9 (56.3%)2 (3.5%)35.357 (6.317–197.9)<.001b
Gray matter migration10 (62.5%)8 (14%)10.208 (2.901–35.923)<.001b
Calcification or hemorrhage4 (25%)8 (14%)2.042 (0.526–7.924).444b
Posterior fossa perimeter (mean) (mm)252. 4 (SD, 110.3)149.9 4 (SD, 100.6).002c
  • Note:—En dash indicates not applicable.

  • a Pearson χ2 test.

  • b Fisher exact test.

  • c Mann-Whitney U test.