Association of lifestyle factors with monoclonal gammopathies. Multivariable logistic regression models for (A) MS-MGUS and (B) all MS-positive monoclonal gammopathies, adjusted for sociodemographic variables of age (continuous variable), sex, Black race, education, and income. The referent population for all models was defined as individuals who screened negative by MS. MS-MGUS, defined as M-protein concentration of ≥0.2 g/L); MS-positive defined as MS-detected monoclonal gammopathies across all M-protein concentration levels.