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Table 3 Associations between hydrocephalus and clinical subgroups of autism spectrum disorders

From: Co-occurring hydrocephalus in autism spectrum disorder: a Danish population-based cohort study

Condition Hydrocephalus Logistic regression adjusted for age and sex
Present N Absent N OR (95% CI) p-valuea
No psychiatric disease (controls) 40 28,566 1 Reference Reference
Childhood autism 23 4424 3.71 (2.08–6.51) 3×10−5
Atypical autism 13 1790 5.58 (2.81–0.40) 1.0×10−6
Asperger’s syndrome 15 4390 2.88 (1.49–5.31) 0.005
Other pervasive developmental disorder 8 1860 3.35 (1·41–7·02) 0.014
Pervasive developmental disorder, unspecified 9 2122 3.46 (1·53–7·01) 0.006
  1. aBonferroni corrected for multiple tests (here five)