Abstract
Background and Purpose- Home-time (HT) is a stroke outcome measure based on time spent at home after stroke. We hypothesized that HT assessment would be feasible and valid using national data. Methods- We linked the Scottish Stroke Care Audit to routine healthcare data and calculated 90-day HT for all strokes, 2005 to 2017. We described prognostic validity (Spearman rank correlation) of HT to baseline factors. Results- We were able to calculate HT for 101 969 strokes (99.3% of total Scottish strokes). Mean HT was 46 days (95% CI, 45.8-46.2; range, 0-90). HT showed consistent correlation with our prespecified prognostic factors: age: ρ, -0.35 (95% CI, -0.35 to -0.36); National Institutes of Health Stroke Scale score, -0.54 (95% CI, -0.52 to -0.55); and 6 simple variables (ordinal), -0.61 (95% CI, -0.61 to -0.62). Conclusions- HT can be derived at scale using routine clinical data and appears to be a valid proxy measure of functional recovery. Other national databases could use HT as a time and cost efficient measure of medium and longer-term outcomes.
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