Subgroup meta-analysis by ethnicity on rs4804803 polymorphism and severity of dengue. Five studies, which were Sakuntabhai(SI) and Sakuntabhai(KK) published in 2005, Alagarasu published in 2013, Oliveira(vietman) and Oliveira(Cambodia) published in 2018, were automatically excluded in genotype analysis of GG versus GA/AA and GG versus AA due to absence of GG individuals in both groups; Other than the analysis under dominant inheritance model, the study conducted by Noecker et al. was automatically excluded in all the genotype analysis due to no information about the distribution of GG and GA genotype obtained. (a) Subgroup meta-analysis under dominant inheritance model (GG/GA versus AA). (b) Subgroup meta-analysis under recessive inheritance model (GG versus GA/AA). (c) Subgroup meta-analysis under codominant inheritance model (GA versus AA). (d) Subgroup meta-analysis under codominant inheritance model (GG versus AA). (e) Subgroup meta-analysis under superdominant inheritance model(GA versus GG/AA).