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Table 2 Comparison of the combined frequency of rare variants between the patient and control groups

From: Genetic analysis of GABRB3 as a candidate gene of autism spectrum disorders

Rare variants Patients (n = 356) Control (n = 386) Odds ratio P  
All rare variants 18 6 3.37 0.007  
5′ regulatory region 7 0   0.006 Fisher’s exact test
Intronic regions 4 2 2.18 0.36  
Exonic regions 8 4 2.20 0.19  
  1. A patient had multiple mutations at the 5′ regulatory and a T186M missense mutation; hence, a total of 14 patients had the rare mutations.