title: Indirect costs of absenteeism due to rheumatoid arthritis, psoriasis, multiple sclerosis, insulin-dependent diabetes mellitus, and ulcerative colitis in 2012: a study based on real-life data from the Social Insurance Institution in Poland.
abstract: BACKGROUND
  The aim of this study is to assess the indirect costs of six major autoimmune diseases including seropositive rheumatoid arthritis, other types of rheumatoid arthritis, psoriasis, multiple sclerosis, Type 1 diabetes, and ulcerative colitis.
  
  
  METHODS
  Relevant data for 2012 on sick leave and short- and long-term work disabilities were obtained from the Social Insurance Institution in Poland. Indirect costs were estimated using the human capital approach based on gross domestic product per capita, gross value added per worker, and gross income per worker in Poland in 2012 and expressed in euro.
  
  
  RESULTS
  We recorded data on the total number of 45,500 patients. The total indirect costs were EUR 146,862,569; 353,683,508; and 108,154,271, calculated using gross domestic product, gross value added, and gross income, respectively.
  
  
  CONCLUSIONS
  Considering only data on absenteeism collected by the Social Insurance Institution in Poland, we can conclude that the selected autoimmune diseases are associated with great indirect costs.
authors.affiliation: a 1 Faculty of Health Science, Jagiellonian University Medical College, 31-232, Poland.
authors.forename: Krzysztof Piotr
authors.initials: KP
authors.lastname: Malinowski
authors.affiliation: b 2 Department of Drug Management, Institute of Public Health, Faculty of Health Sciences, Jagiellonian University Medical College, 31-232, Poland.
authors.forename: Paweł Piotr
authors.initials: PP
authors.lastname: Kawalec
authors.affiliation: b 2 Department of Drug Management, Institute of Public Health, Faculty of Health Sciences, Jagiellonian University Medical College, 31-232, Poland.
authors.forename: Paweł
authors.initials: P
authors.lastname: Moćko
mesh_terms: D000041:Absenteeism; D001172:Arthritis, Rheumatoid / Q000191:economics; D001327:Autoimmune Diseases / Q000191:economics* / Q000503:physiopathology; D003093:Colitis, Ulcerative / Q000191:economics; D017281:Cost of Illness; D003922:Diabetes Mellitus, Type 1 / Q000191:economics; D006801:Humans; D009103:Multiple Sclerosis / Q000191:economics; D011044:Poland; D011565:Psoriasis / Q000191:economics; D012943:Social Security / Q000191:economics*
keywords: absenteeism; indirect cost; insulin-dependent diabetes; multiple sclerosis; psoriasis; rheumatoid arthritis; type 1 diabetes; ulcerative colitis