Figure 2.

Association of dietary PC with incident cognitive decline in total subjects and grouped by baseline age and gender. The Cox frailty model was employed, and results are shown as HR (95% CI). Model 1 adjusted for age, gender, education, household income, residence region and urbanization level. Model 2 additionally adjusted for alcohol intake, total physical activity, energy intake and choline intake. Model 3 additionally adjusted CVD history, BMI, baseline global cognitive score. For gender-stratified analysis, gender was excluded in Model 1. * p < 0.05, ** p < 0.01, *** p < 0.001.