Figure 4: Interaction between BDNF genotype and food intake on hip in BPRHS. Lozenges represent the major allele GG homozygotes ( in men; in women) and triangles the minor allele A carriers (AA homozygotes and GA heterozygotes combined together, in men; in women). Predicted hip values for all subjects were plotted against their food intake expressed as g/d. Hip values were calculated based on the regression model containing PUFA intake, BDNF genotypes, and the potential confounders including age, smoking status, drinking status, sex, education, medication use for depression, physical activity, and population admixture.