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Table 4 List of a priori Clinically Defined Predictors and their Measurement

From: Models solely using claims-based administrative data are poor predictors of rheumatoid arthritis disease activity

Measurement Value Variable Table
Laboratory
 Number ESR tests 85651, 85652 CPT CDW.OutpatProcedure
 Number CRP tests 86140 CPT CDW.OutpatProcedure
 aCCP – (Y/N) 86200 CPT CDW.OutpatProcedure
 RF – (Y/N) 86431 CPT CDW.OutpatProcedure
 Number. complete blood counts 85025 CPT CDW.OutpatProcedure
 Number. chemistry panels ordered or any electrolyte 80053, 82248, 82465, 82977, 83540, 83615, 84100, 84478, 84550 CPT CDW.OutpatProcedure
Radiology
 Radiographs (Y/N) 70010-79999 CPT CDW.OutpatProcedure
 Number radiographs Count of 70010-79999 CPT CDW.OutpatProcedure
 Hand or foot (Y/N) (toes, fingers, wrist) 73620, 73630, 73650, 73660, 73100, 73110,73120, 73130 CPT CDW.OutpatProcedure
 C-spine (Y/N) 72040, 75052 CPT CDW.OutpatProcedure
 Other bone x-ray (Y/N) Master file CPT CDW.OutpatProcedure
Clinic Visits
 Any visit Any stopcode CDW.outpatVisit
 Rheumatology 314 stopcode CDW.outpatVisit
 Primary care 323, 342 stopcode CDW.outpatVisit
 Orthopedic 60, 509 stopcode CDW.outpatVisit
 Physical Rehabilitation 201, 250 stopcode CDW.outpatVisit
 Occupational Therapy 21, 206, 460 stopcode CDW.outpatVisit
 Number ED visits 130, 101 stopcode CDW.outpatVisit
Utilization
 Number Inpatient stay Row count per person Admission date Inpatient.inpatient
 Unique Drug class codes Row count per person VAdrugclasscode CDW.Rxoutpat
Procedures
 Any surgery 10021-6990 CPT  
 Any surgery Master file ICD9 CDW.outpatProcedure, inpatProcedure, inpatientCPT
 Hand surgery 26500, 26502, 26504, 26494, 26989 CPT CDW.Outpat.Procedure, inpatientCPT
 Hand surgery Master filea ICD9 CDW.inpatientProcedure
 Any orthopedic (include spine) surgery Master file CPT CDW.inpatientCPT, Outpat.Procedure
 Joint injections Master file Jcode CDW.Outpat.Procedure, inpatientCPT
Comorbidity
 RDCI RA comorbidity score See published paper ICD9 CDW.outpatDiagnosis
 Rheumatoid lung involvement 714.81 ICD9 CDW.outpatDiagnosis
 Felty’s syndrome 714.1 ICD9 CDW.outpatDiagnosis
 Sjogrens 710.2 ICD9 CDW.outpatDiagnosis
Assistive Devices
 Cane (Y/N) Master file CPT/ICD9 procedure CDW.outpatProcedure, inpatProcedure
 Crutch (Y/N) Master file CPT/ICD9 procedure CDW.outpatProcedure, inpatProcedure
 Walker (Y/N) Master file CPT/ICD9 procedure CDW.outpatProcedure, inpatProcedure
 Wheelchair (Y/N) Master file CPT/ICD9 procedure CDW.outpatProcedure, inpatProcedure
 Other Assist Device (Y/N) Master file CPT/ICD9 procedure CDW.outpatProcedure, inpatProcedure
Medications dispensed
 Number NSAID MS102 VA drug Class CDW.Rxoutpatfill
 Number Non-biologic DMARD String search - list below drugnamewithoutdose CDW.Rxoutpatfill
 Methotrexate (Y/N) String search drugnamewithoutdose CDW.Rxoutpatfill
 Leflunomide (Y/N) String search drugnamewithoutdose CDW.Rxoutpatfill
 Sulfasalazine (Y/N) String search drugnamewithoutdose CDW.Rxoutpatfill
 Hydroxychloroquine (Y/N) String search drugnamewithoutdose CDW.Rxoutpatfill
 Azathioprine (Y/N) String search drugnamewithoutdose CDW.Rxoutpatfill
 TNFi (Y/N) String search: etanercept, adalimumab, infliximab, golimumab, certolizumab drugnamewithoutdose CDW.MCA, Rxoutpatfill, outpatProcedure, TIU notes
 Other biologics rituximab, abatacept, anakinra, tocilizumab, drugnamewithoutdose CDW.MCA, Rxoutpatfill, outpatProcedure, TIU notes
 Tofacitinib (Y/N) String search drugnamewithoutdose CDW.Rxoutpatfill
 Glucocorticosteroids (Y/N and Dose) HS051 VA drug Class CDW.MCA and Rxoutpatfill
 Minor DMARDs (Any Y/N) Doxycyline, minocycline, auranofin, d-penicillamine, cyclosporine drugnamewithoutdose CDW.Rxoutpatfill
 Smoking cessation medication (Y/N) Chantix Nicotine substitutes Drugnamewithoutdose CDW.Rxoutpatfill
Processed Medication Data for DMARDs
 Days since start med All meds drugnamewithoutdose CDW.Rxoutpatfill
 Days since end med (90-day gap to end) All meds drugnamewithoutdose CDW.Rxoutpatfill
 PDC from start therapy to end of observation period All meds drugnamewithoutdose CDW.Rxoutpatfill
Demographics
 Age Age DOB CDW.patient
 Gender M/F Gender CDW.patient
  1. aMaster File = primary excel workbook containing all measured concepts and is available by request (brian.sauer@utah.edu)
  2. ESR erythrocyte sedimentation rate, CRP c-reactive protein, PDC proportion of days covered