Marital dissolution, marital discord, and C-reactive protein: Results from The Irish Longitudinal Study on Ageing.

Abstract

Inflammation is one biological pathway through which marital dissolution and marital discord may increase risk for chronic disease. The present study was conducted to investigate the cross-sectional association between marital dissolution, marital discord, and C-reactive protein (CRP), an indicator of inflammation, in a probability sample of Irish adults aged 50 years or older. Data were drawn from The Irish Longitudinal Study on Ageing. Linear regression analyses were conducted to examine (a) the association between marital dissolution and CRP values (N = 2,545), (b) the association between marital discord and CRP values (N = 1,949), and (c) whether these associations were moderated by gender. Subsequent models adjusted for demographic characteristics and health variables. With respect to marital dissolution, individuals who were separated or divorced had significantly higher CRP relative to married individuals. With respect to marital discord, gender significantly moderated the association between marital discord and CRP, such that marital discord was significantly and positively associated with CRP for men, whereas this association was not statistically significant for women. Results for marital dissolution and marital discord remained statistically significant when adjusting for demographic characteristics and health variables. This is one of the first studies to document a significant cross-sectional association between marital dissolution, marital discord, and CRP, incremental to demographic and health covariates, in a non-American probability sample. Results indicate that inflammation may be one pathway by which marital dissolution and marital discord contribute to risk for disease and early death. (PsycInfo Database Record (c) 2021 APA, all rights reserved).