Table 1

 Schematic content of the Swedish Early Arthritis Register, the national ARTIS biologics cohort, and its two major subsets—namely, the SSATG and the STURE regional biologics registers

Schematic contentEarly arthritisARTIS biologics register
Total ARTIS cohortSTURESSATG
*Any visit, whether scheduled or unscheduled, may be registered; †patients in the Early Arthritis Register who start treatment with biological agents are automatically flagged for the ARTIS register as both registers use the same data entry and storage facility; ‡includes information also on drugs taken; §Online for the treating physician ARTIS displays DAS, DAS response, and disease activity level, whereas SSATG displays all the calculable measures.
At inclusion
Age, sexYesYesYesYes
DiagnosisYesYesYesYes
Contributing diagnosisNoNoNoYes
Disease onsetYesYesYesYes
ACR RA criteriaYesNoNoNo
Follow up time points*0, 3, 6, 12 and every 6 months0, 3, 6, 12 and every 6 months0, 3, 6, 12 and every 6 months0, 3, 6, 12 and every 6 months
At follow up
Prescribed drugs
    Biological agent (type and dose)Yes†YesYesYes‡
    DMARD (type)YesYesYesYes‡
    Prednisolone (no/yes/dose)YesYesYesYes‡
    NSAID/Coxib (no/yes)YesYesYesYes‡
    Analgesics (no/yes)YesYesYesYes‡
Evaluated measures
    Tender and swollen 28 joint countsYesYesYesYes
    VAS globalYesYesYesYes
    VAS painYesYesYesYes
    Global evaluator (5 point Lickert scale)YesYesYesYes
    HAQYesYesYesYes
    EQ-5DNoNoNoYes
    Working capacityYesNoNoOptional
    Health economic measuresNoNoNoOptional
    Tender/swollen 66/68 joint countNoNoNoOptional
Calculable measures§
    DAS28, and DAS28 activity levelYesYesYesYes
    EULAR responseYesYesYesYes
    ACR responseYesYesYesYes
    VAS global responseYesYesYesYes
    VAS pain responseYesYesYesYes
    HAQ responseYesYesYesYes
    Health utility valuesNoNoNoYes
Data handling
    Data entryDecentralisedDecentralisedDecentralisedCentralised
    Entry modeWebWebWebPaper form
    Patient data entryOptionalOptionalOptionalNo
    Primary data storageNationalNationalRegionalRegional
    Missing data requestedYesYesYesYes (biannual)