Figure. Flow Diagram of Study Sample.

EHR indicates electronic health record.

^aPatients who were Kaiser Permanente Washington employees, needed an interpreter, lived outside of Washington state, were recently deceased, or had opted out of EHR were excluded.

^bIncludes American Indian or Alaska Native, Asian, Black, Hispanic, and Native Hawaiian or Other Pacific Islander; oversampling was done to obtain representation of subgroups that are often underrepresented in research.