Objective: To determine the validity of clinically derived prognostic scores in targeting stroke rehabilitation in elderly patients.
Design, setting and participants: One-year prospective cohort study in 96 hospitalized stroke patients over 75 years of age from a well defined geographical area.
Measurements: Edinburgh prognostic score (incorporating measures of motor deficit, proprioception, and power), Orpington prognostic score (Edinburgh score modified to include a measure of cognition), and Barthel ADL scores were measured at 1, 2, and 4 weeks after stroke. These scores were correlated with outcome and patients' Barthel ADL score at discharge or at 16 weeks if still in hospital.
Results: Edinburgh prognostic score measured at 2 weeks correlated significantly with Barthel ADL score at discharge or at 16 weeks (r2 = 0.57, P < 0.001), and Orpington prognostic scores showed greater correlation (r2 = 0.89 vs 0.57), especially in patients with dementia (r2 = 0.81 vs 0.39). Barthel ADL scores at 2 weeks showed a weak correlation with Barthel ADL scores at discharge or 16 weeks (r2 = 0.58). Patients with Orpington Score < 3.2 were discharged within 3 weeks of stroke, whereas those scoring > 5.2 required long-term care. Most patients (90%) with Orpington Score of 3-5 were eventually discharged home although this was not always apparent on initial clinical assessment at the time of admission.
Conclusions: The Orpington score when assessed at 2-weeks post-stroke is a useful prognostic indicator with special suitability for the elderly and may help to select patients most likely to benefit from stroke unit rehabilitation.