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Table 4 Genotype distribution and allele frequency of the hexanucleotide repeat polymorphism in the SMPD1 gene in low HDL-C and control subjects

From: Sphingomyelin phosphodiesterase-1 (SMPD1) coding variants do not contribute to low levels of high-density lipoprotein cholesterol

Genotype or allele Control subjects (%) Low HDL-C subjects (%) p
5/5 0.4 0 0.527
5/6 6.3 2.6  
5/7 5.4 7.0  
6/6 20.3 25.5  
6/7 45.6 37.7  
7/7 20.3 26.3  
7/8 0.4 0  
7/9 0.9 0.9  
7/10 0.4 0  
5 6.3 4.8 0.619
6 46.2 45.6  
7 46.6 49.1  
8 0.2 0  
9 0.5 0.5  
10 0.2 0