| Background. Self-rated health (SRH) is among the most frequently assessed health perceptions in epidemiological research. While the predominant focus has been the predictive relevance of SRH, there is increasing interest in understanding the nature of SRH. Recently a conceptual interpretation of SRH was proposed.;Methods. A cohort of individuals undergoing total joint replacement (TJR) for hip or knee osteoarthritis (OA) was followed over 6 months of recovery. Participants (n=449) completed (pre-surgery, 3 and 6 months post-surgery) measures associated with physical health: pain, physical function, sports/recreation, fatigue; mental well-being: anxiety, depression; and social health: social participation, passive/active recreation, community access. Using structural equation modeling, confirmatory factor analyses (CFA) investigated 3 latent health variables, and the responsiveness of SRH to current and changing health status, as well as its predictive significance for future health status was investigated.;Results. CFA analyses confirmed relationships between observed health measures and hypothesized latent health dimensions. SRH was responsive to current and changing mental well-being. The effects of physical and social health were mediated through mental well-being. SRH was a strong predictor of future SRH and future health status.;Conclusion. SRH displayed features of both an enduring self-concept and spontaneous assessment of health status; evidence is provided that both operate simultaneously. While aspects of physical health have always been perceived as the major determinants of SRH, these findings indicate that mental and social health explain much of the relationship between physical health and SRH. These results are particularly unexpected since this is a sample of individuals undergoing TJR surgery, for which pain and restricted physical function are primary indicators. Since SRH is a significant predictor of health status, TJR outcomes, health care utilization and mortality, this study suggests that health research and care, treatment and management modalities should consider a broad range of health dimensions, not only physical aspects of health, and SRH.;Purpose. To assess the tenability of the recently proposed distinctions of self-rated health, as a spontaneous assessment of overall health, or as an enduring self-concept, or both, and to determine the significance of mental well-being, physical and social health for SRH. |
