@article{ref1,
title="Factors influencing attrition in a multisite, randomized, clinical trial following traumatic brain injury in adolescence",
journal="Journal of head trauma rehabilitation",
year="2014",
author="Blaha, Robert Z. and Arnett, Anne B. and Kirkwood, Michael W. and Taylor, H. Gerry and Stancin, Terry and Brown, Tanya M. and Wade, Shari L.",
volume="30",
number="3",
pages="E33-40",
abstract="BACKGROUND:: Attrition in longitudinal research negatively affects statistical power, disrupts statistical stability, and can produce unwanted bias. <br><br>OBJECTIVE:: To investigate factors associated with shorter length of study participation and lower rates of study completion (ie, attrition) in a large, multisite, longitudinal, randomized, clinical trial examining the efficacy of a Web-based family problem-solving treatment following traumatic brain injury (TBI) in adolescence. SETTING:: Five major trauma centers in the central and western regions of the United States. PARTICIPANTS:: Children (N = 132) aged 12 to 17 years hospitalized for complicated mild to severe TBI within the previous 6 months. <br><br>RESULTS:: Completers had a higher primary caregiver education and higher family income than noncompleters, whereas ethnicity, latency to baseline assessment, and intervention group were not significantly associated with study completion. <br><br>CONCLUSION:: This is the first study that has specifically examined factors of attrition in a pediatric TBI population. The results suggest that research on pediatric TBI populations may be biased toward higher-income families and highlights the importance of designing studies with increased awareness of the impact of participant demographic factors.<p /> <p>Language: en</p>",
language="en",
issn="0885-9701",
doi="10.1097/HTR.0000000000000059",
url="http://dx.doi.org/10.1097/HTR.0000000000000059"
}