List of key variables and their sources
| Variable | Source |
| Nursing home characteristics | |
| Certified nurse assistant, hprd | Nursing Home Compare 2014 |
| Licensed practical nurse, hprd | Nursing Home Compare 2014 |
| Registered nurse, hprd | Nursing Home Compare 2014 |
| Total nurse staffing, hprd | Nursing Home Compare 2014 |
| Bed size | Nursing Home Compare 2014 |
| Number of inspection deficiencies | Nursing Home Compare 2014 |
| Ownership type | Nursing Home Compare 2014 |
| Occupancy rate | Nursing Home Compare 2014 |
| % Residents who are Medicare-pay | OSCAR 2013 |
| % Residents who are Medicaid-pay | OSCAR 2013 |
| Chain affiliation | OSCAR 2013 |
| Nursing home quality | |
| Overall 5-star rating | Nursing Home Compare 2014 |
| Inspection results star rating | Nursing Home Compare 2014 |
| Quality measures star rating | Nursing Home Compare 2014 |
| Staffing measures star rating | Nursing Home Compare 2014 |
| Market characteristics | |
| Median household income ($1000) | Area Health Resource File 2013 |
| Proportion over age 65 in county | Area Health Resource File 2013 |
| Market competition (Herfindahl Index) | OSCAR 2013 |
| Urban | Area Health Resource File 2013 |
| Facebook variables | |
| Have a Facebook page | Facebook search 2015 |
| Have a Facebook rating | Facebook search 2015 |
| Value of Facebook ratings | Facebook search 2015 |
| NH satisfaction | |
| Maryland | State-sponsored survey, 2014 |
| Minnesota | State-sponsored survey, 2014 |
hprd, hours per resident day; OSCAR, Online Survey Certification and Reporting System.