Abstract
Background: Attrition in longitudinal research negatively affects statistical power, disrupts statistical stability, and can produce unwanted bias. 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 aWeb-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. 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. 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.
Original language | English (US) |
---|---|
Pages (from-to) | E33-E40 |
Journal | Journal of Head Trauma Rehabilitation |
Volume | 30 |
Issue number | 3 |
DOIs | |
State | Published - May 1 2015 |
Keywords
- Adolescence
- Attrition
- Closed head injury
- Pediatrics
- Randomized clinical trial
- Retention
- Traumatic brain injury
ASJC Scopus subject areas
- Physical Therapy, Sports Therapy and Rehabilitation
- Rehabilitation
- Clinical Neurology