Fig. 3

Associations of obesity, sarcopenia, and sarcopenic obesity with incident dementia stratified by PRS level for women (A) and men (B). Stratified analysis was based on multivariable model, which was adjusted by baseline age, Townsend Deprivation Index (TDI), ethnicity (White, Asian or Asian British, Black or Black British, and other), education qualifications (degree or no degree), physical activity (low, moderate and high level), smoking status (current, former, or never), alcohol status (current, former, or never), vegetables consumption, fruits (0–1, 2–3, and ≥ 3 pieces per day), red meat consumption (never, less than once a week, once a week, and more than twice a week), processed meat consumption (never, less than once a week, once a week, and more than twice a week), and oily fish consumption (never, less than once a week, once a week, and more than twice a week), coffee, and dairy (yes or no). Normal group consisted of those without sarcopenia, obesity, or sarcopenic obesity. P value for interaction between three different conditions and PRS level were 0.0480 and < 0.001, respectively for women and men