Risk Factors for Disability Pensioning Caused by Mental Disorders - A Systematic Review

Background Meanwhile, mental disorders are the main reason for receiving a disability pension. The present study aimed at providing an overview of the German literature on characteristics and factors related to ERMD and pointing out the current state in this field of research. Revealing parameters that are accompanied by an ERMD is a precondition to prospectively prevent this trend. Methods A systematic literature review was conducted from 2001 through to 2014. All results regarding German statutory pension insurants pensioned due to mental disorders after 2001 were included. Studies were considered if they reported 2 or more relevant results. Research design was not limited, except for excluding anonymous questionnaires. Results 20 studies were found meeting eligibility criteria. All included studies were based on secondary analyses of data derived from the German statutory pension insurance. By means of gender-specific regression analyses the level of qualification and the geographical region were unveiled to be significant predictors of the ERMD. Basically, most reported results were descriptive or explorative. Besides various single results and evidence for interactions, frequently reported results are that: (i) female insurants get pensioned more frequently due to mental disorders than male insurants, (ii) affective disorders are the most frequent diagnoses, (iii) insurants with mental disorders are younger than insurants with somatic disorders when they get pensioned and (iv) insurants with schizophrenic disorders are younger than insurants with other mental disorders when they get pensioned. The utilisation of rehabilitative services before getting pensioned is limited at 50 %. Conclusion This work demonstrates a lack of empirical evidence of how (and what) disability risks are associated with ERMD in Germany. Furthermore, our results illustrate that a major part of the insurants do not attend rehabilitative services before their retirement, even though rehabilitation of mental illness is assumed to be effective. Future studies should hence focus on identifying disability related risk factors and barriers to using rehabilitative services in order to develop starting points for preventive and individual strategies.