From: DEMQOL and DEMQOL-Proxy: a Rasch analysis among those diagnosed with dementia
 | Subsample dementia | Full sample | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Item | Location | Fit Residual | ChiSq | p | DIF | Location | Fit Residual | ChiSq | p | DIF |
2. Worried or anxious | 0.331 | 1.081 | 5.84 | 0.44 | ns | 0.349 | 0.886 | 3.54 | 0.94 | ns |
4. Frustrated | 0.483 | 0.338 | 4.58 | 0.60 | ns | 0.546 | 0.257 | 2.66 | 0.98 | ns |
7. Sad | 0.036 | − 0.416 | 4.23 | 0.65 | ns | 0.080 | −0.255 | 6.58 | 0.68 | ns |
8. Lonely | − 0.238 | 1.948 | 19.47 | 0.00 | ns | −0.206 | 2.222 | 5.59 | 0.78 | ns |
9. Distressed | −0.531 | − 0.252 | 2.31 | 0.89 | ns | −0.391 | −2.395 | 7.04 | 0.63 | ns |
11. Irritable | 0.050 | 0.497 | 3.16 | 0.79 | ns | 0.007 | 0.361 | 1.66 | 1.00 | ns |
12. Fed-up | 0.489 | 0.192 | 3.69 | 0.72 | ns | 0.425 | 0.361 | 2.20 | 0.99 | ns |
13. Things you wanted but couldn’t | 0.735 | 2.408 | 21.20 | 0.00 | ns | 0.829 | 4.077 | 12.51 | 0.19 | ns |
14. Forgetting happened recently | 0.673 | −0.974 | 11.45 | 0.08 | ns | 0.654 | −1.100 | 4.43 | 0.88 | ns |
15. Forgetting who people are | 0.018 | −0.207 | 6.34 | 0.39 | ns | −0.043 | 2.511 | 6.68 | 0.67 | ns |
16. Forgetting what day it is | 0.375 | 1.342 | 5.28 | 0.51 | ns | 0.135 | 4.339 | 11.45 | 0.25 | ns |
17. Thoughts being muddled | 0.280 | −1.107 | 11.45 | 0.08 | ns | 0.126 | −2.376 | 8.27 | 0.51 | ns |
18. Difficulty making decisions | −0.123 | −1.527 | 8.23 | 0.22 | ns | −0.103 | − 2.777 | 8.08 | 0.53 | ns |
19. Poor concentration | 0.305 | −2.557 | 16.96 | 0.01 | ns | 0.298 | −2.338 | 6.86 | 0.65 | ns |
20. Not having enough company | −0.468 | 1.750 | 16.53 | 0.01 | ns | −0.415 | −0.981 | 5.01 | 0.83 | ns |
21. Get on with people close to you | −0.366 | −2.134 | 10.65 | 0.10 | ns | −0.422 | −1.291 | 5.21 | 0.82 | ns |
22. Getting the affection you want | −0.564 | −1.112 | 6.15 | 0.41 | ns | −0.525 | 0.328 | 6.63 | 0.68 | ns |
23. People not listening to you | −0.635 | 0.290 | 5.56 | 0.47 | ns | −0.479 | −0.989 | 5.73 | 0.77 | ns |
24. Making yourself understood | −0.319 | −1.278 | 6.88 | 0.33 | PWD sex | −0.337 | −1.792 | 4.27 | 0.89 | ns |
25. Getting help when needed | −0.466 | −1.278 | 11.54 | 0.07 | ns | −0.511 | −2.833 | 5.07 | 0.83 | ns |
26. Getting to the toilet in time | −0.202 | 1.596 | 16.87 | 0.01 | ns | −0.267 | 3.543 | 17.96 | 0.04 | ns |
27. How you feel in yourself | 0.011 | −2.538 | 16.88 | 0.01 | ns | 0.016 | −4.440 | 14.24 | 0.11 | ns |
28. Overall health | 0.125 | −0.816 | 5.74 | 0.45 | ns | 0.232 | −1.848 | 6.27 | 0.71 | ns |