Linear regression models for cystatin C-based estimated glomerular rate (eGFR) at age 60–64 years (ml/min/1.73 m², dependent variable) by cognitive function quartile at age 60–64 years (independent variable).

ALikelihood ratio test. Model 3: Additionally adjusted for childhood cognitive function. Model 4: Additionally adjusted for lifetime smoking, self-reported diabetes by age 60–64 years, being on diabetes treatment at age 60–64 years, HbA1c at age 60–64 years, midlife systolic blood pressure trajectory, being on anti-hypertensive treatment at age 60–64 years, systolic blood pressure at age 60–64 years, C-reactive protein at age 60–64 years, body mass index at age 60–64 years and age at first overweight.