In this master' thesis the probabilities of work resumption and receiving an return-to-work oriented intervention for disabled unemployed and flex workers are analysed and described. In the literature this particular group of the labour force, also called safety-netters, is characterised as disadvantaged relative to usual employees. This thesis, therefore, describes the factors that are related to the probability of receiving a work resumption oriented intervention by the Dutch National Social Insurance Institute (NSII/UWV). Subsequently the relation between receiving an intervention and work resumption is explored. The answers on these questions are compared with results from previous studies, where the differences may indicate the impact of the current economic situation on intervention and work resumption probabilities. These questions are answered in the first place through an extensive literature review and then by analysing and discussing our data. In this thesis the factors that are significantly related to the intervention and work resumption probabilities are confirming the existing literature. According to my results, interventions by the NSII are not significantly related to work resumption. Further, and also important for safety-netters, unemployment has a decreasing effect on work resumption and increases sickness duration. Comparing our results with previous studies, indicates that both the intervention and work resumption probabilities are lower in 2012 than, for example, 2007. In the discussion of this thesis, recommendations are given to find causal results instead of relation. This thesis can contribute to the existing literature because of the explicit focus on safety-netters and the use of recent data.