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. 2013 Dec 20;8(12):e81852. doi: 10.1371/journal.pone.0081852

Table 4. Fit of the MULTIPleS items to the Rasch model.

Location SE FitResid. ChiSq. Prob.
Emotional Representations Scale
Having more than one condition makes me more unhappy −0.36 0.07 0.63 3.58 0.31
Having more than one condition makes me more anxious −0.09 0.07 1.49 1.73 0.63
Having more than one condition makes me more frustrated 0.24 0.06 −0.27 3.37 0.34
Having more than one health condition makes me feel sad −0.08 0.06 −0.96 4.65 0.2
Having more than one condition make me more irritable 0.01 0.06 −1.04 7.19 0.07
If I feel sad or depressed, managing all my conditions is a struggle 0.29 0.06 1.25 8.51 0.04
Treatment Burden Scale
Taking different medications for each of my conditions has caused me problems −0.4 0.1 2.04 4.55 0.21
Having more than one condition makes my treatments less effective 0.37 0.12 −0.88 7.55 0.06
It is difficult to take all my medications the way I am supposed to 0.32 0.11 −1.58 6.53 0.09
Having more than one condition makes it difficult to get the best available treatment 0.03 0.1 −0.76 1.75 0.63
I don't like mixing medications for different conditions −0.36 0.11 1.15 0.64 0.89
I feel so overwhelmed by the treatment for one condition that it is hard to manage any others 0.04 0.11 1.62 1.78 0.62
Prioritisation Scale
One of my conditions is more serious than the others −0.17 0.09 1.28 2.64 0.45
One of my conditions has more of an impact on my life −0.53 0.09 −0.28 7.58 0.06
One of my conditions dominates the others 0.59 0.08 −0.14 4.61 0.2
One of my conditions is more worrying than the others 0.1 0.08 0.19 6.8 0.08
Causal Links Scale
The caused of my conditions are linked −0.26 0.1 0.18 3.98 0.26
One of my conditions has caused another 0.2 0.1 0.55 3.56 0.31
My conditions interact with each other 0.06 0.1 1.29 1.76 0.62
Activity Limitation Scale
Time spent managing my conditions has made it more difficult to carry out my usual activities −0.03 0.1 0.36 2.55 0.47
Time spent managing my conditions has reduced my social life 0.09 0.1 0.6 4.38 0.22
Spending time managing my conditions has limited my activities −0.06 0.1 0.23 1.97 0.58