Press Ganey Surveys in Patients Undergoing Upper-Extremity Surgical Procedures: Response Rate and Evidence of Nonresponse Bias.

PGAS response rates were low (13.5%), and differences between responders and nonresponders may be utilized by hospitals to target feedback from underrepresented patient populations. Surgeons, policymakers, and health-care administrators should use caution with the interpretation of PGAS results because responders may not be representative of all patients.