Why the study?
It was unknown what proportion of older adults with hip fractures were captured by the WHiTE cohort, whether selection bias occurred during recruitment, and how representative the cohort was of the broader population.
Population
Older adults with hip fractures treated at WHiTE hospitals
Comparison
Patients recruited into the WHiTE cohort vs those submitted to the NHFD
Design
Multicentre prospective cohort validation study
Authors
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May support cautious generalization of WHiTE findings to typical older hip-fracture patients; leaves open residual effects of mild fitness bias.
The WHiTE cohort is broadly representative of the national population of older adults with hip fractures in England, Wales, and Northern Ireland, despite a weak selection bias towards fitter patients.
Metcalfe et al. (2019) studied this question.
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