Table 3 Item characteristics (difficulties and discrimination) for MAPLe-RA scale
Item discriminations | Item difficulties | |||
|---|---|---|---|---|
Items | Estimate (SE) | P-value | Estimate (SE) | P-value |
Physical domain | ||||
Swelling of the joints | 1.38 (0.58) | 0.018 | −1.22 (0.30) | <0.001 |
Pain | 1.74 (0.82) | 0.034 | −1.25 (0.30) | <0.001 |
Morning stiffness | 1.25 (0.47) | 0.008 | −1.00 (0.25) | <0.001 |
Mobility | 1.04 (0.41) | 0.012 | −1.16 (0.31) | <0.001 |
Fatigue | 0.87 (0.26) | 0.001 | −0.96 (0.25) | <0.001 |
Visible signs of RA | 0.49 (0.16) | 0.002 | 0.19 (0.24) | 0.427 |
Joint damage | 0.40 (0.15) | 0.006 | −0.62 (0.34) | 0.066 |
Psycho-social domain | ||||
Maintain my independence | 1.46 (0.39) | <0.001 | −0.14 (0.13) | 0.270 |
Improvements in my general health | 0.85 (0.23) | <0.001 | 0.06 (0.17) | 0.712 |
Everyday activities | 1.27 (0.40) | 0.001 | −0.32 (0.14) | 0.027 |
To feel in control of my RA self-manage | 1.64 (0.49) | 0.001 | −0.46 (0.13) | 0.001 |
To maintain my social roles | 1.87 (0.63) | 0.003 | −0.30 (0.12) | 0.016 |
My emotional well-being | 1.77 (0.51) | 0.001 | −0.42 (0.13) | 0.001 |
Impact of new Treatment | ||||
Feel better overall | 1.47 (0.38) | <0.001 | −1.02 (0.20) | <0.001 |
Reduce the likelihood of surgery | 0.89 (0.27) | 0.001 | −1.19 (0.29) | <0.001 |
To prevent other physical complications | 0.70 (0.27) | 0.008 | −1.47 (0.44) | 0.001 |
To come with detailed information from the medical staff | 1.16 (0.45) | 0.010 | −1.36 (0.34) | <0.001 |
Decision making with the clinical staff | 0.87 (0.34) | 0.010 | −1.65 (0.47) | <0.001 |
Regular physical assessment | 1.41 (0.52) | 0.007 | −1.36 (0.29) | <0.001 |
Regular emotional well-being | 0.81 (0.26) | 0.001 | −0.90 (0.25) | <0.001 |
Not to have to change medication | 0.52 (0.18) | 0.005 | −1.14 (0.40) | 0.004 |