Early rheumatoid arthritis 6 years after diagnosis is still associated with high direct costs and increasing loss of productivity (the Swedish TIRA project).
Eva
AbstractObjectives. To calculate total costs during 6 years after diagnosis of early rheumatoid arthritis.Methods. In the longitudinal prospective multicenter TIRA study, 239 patients from 7 units, diagnosed 1996-98, reported regularly health care utilization and number of days lost from work. Costs were obtained from official databases and calculated using unit costs (Swedish kronor, SEK) from 2001. Indirect costs were calculated using human capital approach. Costs were inflation-adjusted to Euro June 2012, using Swedish Consumer Price Index and exchange rate June 2012. Statistical analyses were based on linear mixed models (LMM) for changes over time.Results. Mean total cost/patient was €14768 in year 1 and increased to €18438 in year 6. Outpatient visits and hospitalization decreased, but costs for surgery increased from €92/patient year 1 to €444 year 6. Drugs increased from €429/patient to €2214/patient, mainly due to introduction of biologics. Year 1, drugs made up for 10% of direct costs and increased to 49% in year 6. Sick leave decreased during the first years, but disability pensions increased, resulting in unchanged indirect costs. Over the following years, disability pensions increased further and indirect costs increased from €10284 year 1 to €13874 year 6. LMM analyses showed that indirect costs were unchanged while direct costs, after an initial drop, increased over the following years, leading to increasing total costs.Conclusions. Drug costs were partially offset by decreasing outpatient visits but indirect costs remained unchanged and total costs increased.