US Federal Investment in Religiousness/Spirituality and Health Research: A Systematic Review

Objectives: Although robust associations between aspects of religiousness/spirituality (R/S) and physical health have been established, little systematic information is available about federal funding support for this area of research. To address this question, we conducted a comprehensive systematic review and analysis. Study Design: Systematic review. Methods: We used the information provided by the Federal RePORTER and searched from earliest date through the end of 2018. Abstracts were included if they were an empirical study and included both a religion/spirituality variable and a health variable. Results: Our search yielded 194 grants reflecting over USD 214 million in research expenditures, with the vast majority (85%) funded by the NIH. Most common were community-based observational studies with healthy populations (70%). Nearly three-quarters (73%) of studies specifying age focused on adults, but children and adolescents were also well represented in these projects. The proportion of studies focused on racial/ethnic minorities (47%) was disproportionate to their representation in the U.S. population, which could reflect either heightened efforts to address health disparities or a view that R/S is primarily or mostly relevant to minority groups. Less than half of funded studies (41%) considered religion a central focus and publications for R/S-focused studies were less common than for non-R/S-focused studies (M = 7.0 to M = 13.3, respectively, p = 0.06). Overall funding levels appear to be declining in more recent years, although this trend was not statistically significant (p = 0.52). Many abstracts did not provide adequate details for coding. Conclusions: Overall, the present review suggests that U.S. federal funding for research on R/S and health is substantial, but most of this has only peripherally considered R/S and has yielded modest return on investment. Promising future directions include a continued focus on racial and ethnic minority populations as well as in emerging areas such as religious gratitude and compassion along with well-designed intervention trials.