Patient_Reported_Outcome_Measures_in_Rheumatic_Diseases

50 discrimination can be used to evaluate the items and to maximize the overall quality of a test. Item characteristic curves, s ...

51 many different trait levels, we simply plot the probabilities that we have obtained. The line connecting these probabilities ...

52 From the perspective of IRT, a test does not have a single “reliability.” Instead, a test might have stronger psychometric qu ...

53 Higher information values indicate greater psychometric quality. Item 1 has higher psychometric quality at relatively low tra ...

54 From an IRT perspective, a test’s psychometric quality can vary across trait lev- els. This is an important but perhaps under ...

55 Most people would probably agree with the first statement (i.e., it is an “easy” item). In contrast, fewer people might agree ...

56 Fitzpatrick R, Davey C, Buxton MJ, Jones DR. Evaluating patient-based outcome measures for use in clinical trials. Health Te ...

57 developing questionnaire modules. EORTC study group on quality of life. Qual Life Res. 1993;2:287–95. Aarsonson NK. Assessin ...

58 the patient-reported outcomes (PRO) harmonization group meeting at the food and drug administration, February 16, 2001. Value ...

© Springer International Publishing Switzerland 2016 59 Y. El Miedany (ed.), Patient Reported Outcome Measures in Rheumatic Dise ...

60 A Biopsychosocial Model to Supplement a Biomedical Model in Rheumatology Recognition of limitations of a biomedical model and ...

61 disease or three-vessel atherosclerotic cardiovascular disease 30 years ago (Fig. 3.2 ) [ 14 ]. This observation has been ext ...

9- to 10-Year Survival According to Quantitative Markers in Three Chronic Diseases a 100 80 6 40 20 0 20 40 60 80 100 >90% 81 ...

63 hand radiographic scores to predict mortality in RA [ 14 , 19 , 22 , 23 ]. Figures 3.2 and 3.3 Poor RA status according to a ...

64 ESR and CRP may be useful to monitor clinical activity in certain patients with RA [ 32 ]; however, at least 40 % of new pati ...

65 pragmatic reason is that changes in laboratory values are seen over days and are the most signifi cant predictor of radiograp ...

66 Despite their value in assessment, monitoring, prognosis, and outcomes, patient questionnaires are not implemented at this ti ...

67 patients?” [ 57 ]. Much of this chapter is concerned with documenting the value of a feasible “80 % measure” that will contri ...

68 small “plan-do-study-act” cycles (Fig. 3.4 ), rather than a grand “defi nitive” research design. At least 20 cycles of change ...

69 The MDHAQ Compared to the HAQ Both the HAQ (see Appendix Chapter) and MDHAQ (see Appendix A) for “return” patients (Table 3.3 ...