TY  - JOUR
PY  - 2013//
TI  - Factors associated with non-participation in one or two follow-up phases in a cohort study of injured adults
JO  - Injury prevention
A1  - Langley, John Desmond
A1  - Lilley, Rebbecca
A1  - Wilson, Suzanne
A1  - Derrett, Sarah
A1  - Samaranayaka, Ari
A1  - Davie, Gabrielle S.
A1  - Ameratunga, Shanthi N.
A1  - Wyeth, Emma H.
A1  - Hansen, Paul
A1  - Hokowhitu, Brendan
SP  - 428
EP  - 433
VL  - 19
IS  - 6
N2  - OBJECTIVE: To identify factors associated with non-participation at the 12-month and 24-month follow-up phases of a prospective cohort study of injury outcomes. METHODS: Associations between non-participation at follow-up phases and a range of sociodemographic, injury, health, outcome and administrative factors were examined. RESULTS: An individual's non-participation at 12 months did not necessarily mean non-participation at 24 months. Sociodemographic factors were the most salient for non-participation, regardless of the number of follow-up phases or specific phase considered. CONCLUSIONS: Retention rates in prospective cohort studies of injury outcome may be improved by follow-up of everyone irrespective of previous non-participation, focusing resources to retain men, young adults, indigenous people and those living with people other than family members, and by ensuring that multiple alternative participant contacts are obtained. There is sufficient evidence to be concerned about potential bias given that several of the factors we, and others, have identified as associated with non-participation are also associated with various functional and disability outcomes following injury. This suggests detailed investigations are warranted into the effect non-participation may be having on the estimates for various outcomes.<p />  <p>Language: en</p>
LA  - en
SN  - 1353-8047
UR  - http://dx.doi.org/10.1136/injuryprev-2012-040685
ID  - ref1
ER  -