As part of a study of patient-centered care outcomes that requires the
ability to be interviewed by telephone after hospitalization, 4,600 a
dult patients on 118 medical-surgical units in 17 midwestern hospitals
selected by stratified random sampling were identified as potential s
ubjects. This article describes response-rate differences and reasons
for nonparticipation by gender, age, ethnicity, and race. Issues relat
ed to understanding and reporting response rates, reducing losses due
to ineligibility, dealing with refusals, and tailoring survey approach
es to special populations are discussed.