The overall pooled measure on the relation of BDNF gene rs6265 and rs2030324 polymorphism with AD.

aOne study about African (Desaia et al)for recessive model was not sufficient to calculated pooled OR.
bSeven studies (Hou et al. Akatsu et al. Lee et al. Desaia et al. Matsushita et al. Masataka et al. Bodner et al.) for recessive model were not sufficient to calculated pooled OR.
Abbreviations: AD, Alzheimer’s disease; FEM, fixed-effects model; REM, random-effects model.
rs6265: Codominant model, A vs. G; Dominant model, AA+GA vs. GG; Recessive model, AA vs. GA+GG.
rs2030324: Codominant model, T vs C; Dominant model, TT+CT vs. CC; Recessive model, TT vs. CT+CC.