Concurrent validity of the outcome defined by response to modified simple questions (Lothian Stroke Register cohort)
| Standard instrument | Median score on standard instruments (interquartile range) for groups defined by response to modified simple questions | p Value | |||
|---|---|---|---|---|---|
| Dependent (n=54) | Independent (n=52) | Recovered (n=41) | |||
| OPCS locomotion score | 7 (3–9.5) | 0 (0–3) | 0 (0–0) | <0.0001 | |
| Barthel index | 17 (12–20) | 20 (20–20) | 20 (20–20) | <0.0001 | |
| Frenchay activities index | 9 (5–15) | 26 (21–31) | 33 (26–36) | <0.0001 | |
| Visual analogue pain scale | 15 (0–50) | 0 (0–20) | 0 (0–10) | <0.0001 | |
| HADS depression subscale | 6 (4–8) | 4 (2–7) | 3 (2–4) | <0.0001 | |
| HADS anxiety subscale | 7 (2–9) | 4 (2–10) | 3 (1–5) | 0.005 | |
p Value=significance of hierarchical differences between levels using the Terpstra-Jonckheere test; dependent=needing help from anybody with everyday activities; independent=not needing help from anybody for everyday activities, but persisting problems after stroke; recovered=not needing help from anybody for everyday activities and no persisting problems after stroke.