Evaluating Patient-Based Outcome Measures - NIHR Health ...

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Evaluating patient-based outcome measures for use in clinical trials Ray Fitzpatrick 1 Claire Davey 1 Martin J Buxton 2 David R Jones 3 1 Division of Public Health and Primary Health Care, University of Oxford 2 Health Economics Research Group, Brunel University 3 Department of Epidemiology and Public Health, University of Leicester Published October 1998 This report should be referenced as follows: Fitzpatrick R, Davey C, Buxton MJ, Jones DR. Evaluating patient-based outcome measures for use in clinical trials. Health Technol Assessment 1998; 2(14). Health Technology Assessment is indexed in Index Medicus/MEDLINE and Excerpta Medica/ EMBASE. Copies of the Executive Summaries are available from the NCCHTA web site (see overleaf).
Page 1 and 2: Evaluating patient-based outcome me
Page 3: HTA How to obtain copies of this an
Page 7: List of abbreviations .............
Page 11 and 12: Background ‘Patient-based outcome
Page 13 and 14: For the purpose of this review, by
Page 15 and 16: The emergence of patient-based outc
Page 17 and 18: cases questionnaire items may ask f
Page 19 and 20: arbitrary) theoretical stance in re
Page 21 and 22: the relevant condition. This is a p
Page 23 and 24: Summary items Single questionnaire
Page 25 and 26: 1995). This form of measure may the
Page 27 and 28: Advantages and disadvantages Severa
Page 29 and 30: Improvement in QoL was used to comp
Page 31 and 32: The third section of this review ex
Page 33 and 34: supplementary questions, favoured b
Page 35 and 36: and with the summed score of the to
Page 37 and 38: 1996b). When the new measure correl
Page 39 and 40: validity of instruments. In an anal
Page 41 and 42: TABLE 3 Statistical methods of eval
Page 43 and 44: method depends upon having an exter
Page 45 and 46: ‘yes’ or ‘no’. Binary respo
Page 47 and 48: assumption of interval properties w
Page 49 and 50: Most recently, Rasch models have be
Page 51 and 52: one extreme instruments that make v
Page 53 and 54: evidence of the extent to which old
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instrument was first developed (Hun
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For trialists selecting a patientba
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This study was supported by the NHS
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52 References Bland JM, Altman DG (
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54 References Eliasziw M, Donner A
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56 References Haig TH, Scott DA, Wi
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58 References Liang MH, Larson MG,
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60 References Pocock SJ (1991). A p
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62 References Tarlov AR, Ware J, Gr
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The aim of the literature review is
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that nothing relevant was lost to s
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TABLE 6 Number of articles identifi
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74 Health Technology Assessment pan
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Copies of this report can be obtain
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