x2_Patient age in years
0 = Under 1 year
92 = 92 years or older

x5_Patient sex
0 = Female
1 = Male

x3_Patient ethnicity - unimputed
-9 = Blank
-8 = Unknown
1 = Hispanic or Latino
2 = Not Hispanic or Latino

x6_Expected source of payment for visit: No answer to item
0 = One or more categories marked
1 = No categories marked

x7_Expected source of payment for visit: Private insurance
0 = No
1 = Yes

x_15_Do you see patients during the evening or on weekends at the office?
-9 = Blank
-8 = Unknown
-6 = Refused to answer
1 = Yes
2 = No

x_18_Does your current system meet meaningful use criteria as defined by the Department of Health and Human Services?
-9 = Blank
-8 = Unknown
-7 = Not applicable
-6 = Refused to answer
1 = Yes
2 = No

x1_Does reporting location have this computerized capability: identifying educational resources for patients' specific conditions - RECODED
-9 = Blank
-8 = Unknown
-6 = Refused to answer
1 = Yes
2 = No
4 = Yes, but turned off/not used

-9 = Blank
-8 = Don't know
-6 = Refused to answer
1 = Yes
2 = No