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Table 4 Variables to be obtained directly from Health Information Systems

From: Study protocol: The back pain outcomes using longitudinal data (BOLD) registry

INDEX VISIT INSURANCE
Date Medicare
ICD-9 codes (primary, secondary) Medicaid
Encounter type Commercial
Encounter subtype Private Pay
Facility code Drug coverage
Provider specialty Co-pay
Provider age  
Provider gender  
Provider ordering patterns  
IMAGING LABORATORY DATA
Date Date
Ordering physician specialty Lab test
Indication for image Result
Image Result (diagnosis) Normal range
CPT code  
DICOM images de-identified  
PHARMACY (All medications that we will subsequently categorize relatedness to back pain) PROCEDURES
Date Date
Generic name CPT code
Brand name Indication for procedure
Supply Referring physician specialty
Amount Performing physician specialty
Specialty of treating physician  
Number times refilled  
PROVIDER VISITS VITAL SIGNS
Date Height
ICD-9 codes (primary, secondary) Weight
Encounter code/type Blood pressure
Encounter subtype  
 Provider specialty COMORBIDITY INDEX
 Primary Care Quan score
 Specialty Care Charlson score
 Urgent Care Elixhauser score
 Emergency room  
 PT  
 Chiropractor  
 Massage  
 Acupuncture