• J Psychosom Res · Dec 2020

    Optimism is associated with chronic kidney disease and rapid kidney function decline among African Americans in the Jackson Heart Study.

    • LáShauntá M Glover, Crystal Butler-Williams, Loretta Cain-Shields, Allana T Forde, Tanjala S Purnell, Bessie Young, and Mario Sims.
    • Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. Electronic address: lmglover@unc.edu.
    • J Psychosom Res. 2020 Dec 1; 139: 110267.

    ObjectiveInvestigate the association of dispositional optimism with chronic kidney disease (CKD) and rapid kidney function decline (RKFD) and determine if there is modification by age, sex, and educational attainment among African Americans.MethodsOptimism was measured using the 6-item Life Orientation Test-Revised scale (categorized into tertiles and log transformed) among participants from the Jackson Heart Study (n = 1960). CKD was defined as the presence of albuminuria or reduced glomerular filtration rate of <60 mL/min/1.73m2, or report of dialysis at baseline examination (2000-2004). RKFD was defined as a decline >3 mL/min/1.73m2/year between baseline and exam 3 (2009-2013). The cross-sectional and prospective associations between optimism and kidney outcomes were tested using multivariable logistic regression to obtain odds ratios (OR) and 95% confidence intervals (CI), adjusting for demographics, education, risk factors, behaviors, and depressive symptoms. We tested effect modification by age, sex, and education.Results569 participants had CKD and 326 were classified as having RKFD by exam 3. After full adjustment, the OR for CKD was 0.73 for those who reported high (vs. low) optimism (95% CI 0.55-0.99) and 0.56 (95% CI 0.27-1.15) for the optimism score. After 7.21 median years of follow up, the OR for RKFD was 0.51 for those who reported high (vs. low) optimism (95% CI 0.34-0.76), and 0.26 (95% CI 0.10-0.56) for the optimism score, after full adjustment. There was no evidence of effect modification by demographics or educational attainment.ConclusionsHigher optimism was associated with a lower odds of CKD and a lower odds of RKFD.Copyright © 2020 Elsevier Inc. All rights reserved.

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