Objectives. The aim of the article is to investigate the differences in sickness present and non-sickness present in the group of disabled health care professionals. Methods. Data were gathered from all disabled health care professionals suffering from invalidity of category II or III who were identified in the research among all health care professionals at the University Medical Centre Ljubljana and who were employed there in the period between 1 January 2010 and 31 December 2010. Each employee obtained a questionnaire composed of three standardized international questionnaires. Results. There were 248 disabled workers of the II. and III. category of invalidity among the participants. Disabled sickness present reported to have more chronic diseases than disabled non-sickness present (OR = 57.0; 95% CI = 24.4-133.2), lower salary when on sick leave (OR = 13.1; 95% CI = 5.7- 30.2) and poor self-rated health (OR = 5.8; 95% CI = 2.7-12.3). Conclusions. The prerequisite for sickness presence among disabled workers is their chronic bad health. It is also formally recognized with the degree of disability. Economic factors are among the most important to direct disabled workers towards sickness presence. The results indicate that workplaces are not adapted to disabled workers in regard to their limitations. Namen. Osnovni namen članka je raziskati razlike med prezentisti in neprezentisti znotraj skupine zdravstvenih delavcev invalidov. Metode. V raziskavi so sodelovali vsi invalidi II. in III. kategorije, ki so zaposleni v Univerzitetnem kliničnem centru Ljubljana in ki smo jih identificirali v raziskavi, ki je zajela vse zaposlene zdravstvene delavce UKC Ljubljana v obdobju med 1.1. 2010 in 31.12.2010. Izpolnili so vprašalnik, sestavljen iz treh standardiziranih mednarodnih vprašalnikov. Rezultati. Med preiskovanci je bilo 248 invalidov II. in III. kategorije. Invalidi prezentisti so navajali več kroničnih bolezni kot invalidi neprezentisti (RO = 57.0; 95 % IZ = 24.4-133.2), nižji osebni dohodek ob bolniškem staležu (RO = 13.1; 95 % IZ = 5.7-30.2) in slabšo samooceno zdravstvenega stanja (RO = 5.8; 95 % IZ = 2.7-12.3). Zaključek. Osnova za prezentizem pri delovnih invalidih je kronična okvara njihovega zdravja, ki je tudi formalno priznana s stopnjo invalidnosti. Ekonomski dejavniki so poleg bolezni najpomembnejši dejavniki tveganja za prezentizem pri invalidih. Iz rezultatov je mogoče sklepati, da delovna mesta invalidnim delavcem niso prilagojena v tolikšni meri, da bi povsem ustrezala njihovim omejitvam zaradi bolezni.