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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: J Am Geriatr Soc. 2013 May 6;61(6):875–881. doi: 10.1111/jgs.12259

Figure 1. Nonlinear effects of continuous variables.

Figure 1

Cognitive score as a function of (a) Body mass index (BMI), (b) years of education and (c) age at baseline. Predicted cognitive scores are based on the semiparametric mixed effects regression model while adjusting for sex, blood pressure, antihypertensive medications, alcohol use, smoking status and history of medical conditions. The gray bands denote 95% pointwise confidence intervals.