Table 1.

Measures.

Measure	Item(s)	Scale
collaboRATE (adapted from (22))	How much effort did this doctor make to help you understand your health issues? How much effort did this doctor make to listen to the things that matter most to you about your health issues? How much effort did this doctor make to include what matters most to you in choosing what to do next?	0 (No effort was made) to 10 (Every effort was made)
Age	What is your age?	18 to 24; 25 to 34; 35 to 44; 45 to 54; 55 to 64; 65 to 74; 75 or older
General health status	In general, how would you rate your overall health?	Excellent; Very good; Good; Fair; Poor
Mental health status	In general, how would you rate your overall mental or emotional health?	Excellent; Very good; Good; Fair; Poor
Gender	Are you male or female?	Male; Female
Educational attainment	What is the highest grade or level of school that you have completed?	Eighth grade or less; Some high school, but did not graduate; High school graduate or GED; Some college or 2-year degree; 4-year college graduate; More than 4-year college degree
Race	What is your race?	White or Caucasian; Black or African American; Asian; Native Hawaiian or other Pacific Islander; American Indian or Alaska Native; Other
Hispanic or Latino origin	Are you of Hispanic or Latino origin or descent?	Yes, Hispanic or Latino; No, not Hispanic or Latino
Primary language	What language do you mainly speak at home?	English; Spanish; Some other language
Primary or specialty care	(From survey sample data)	PCP; Specialist
Mode of response	(From survey sample data)	Mail; Web; Phone
Medical group/clinic	(From survey sample data)	Anonymized medical group ID
Medical group size	Number of survey respondents in each medical group (per Patient Assessment Survey quotas)	Continuous numeric variable