The severity of occupational HE is increased in smokers. Tobacco smoking is associated with a higher number of days of absence from work and with not staying in the workforce owing to occupational HE. Thus, smoking confers a worse prognosis and interferes with the outcome of prevention programmes.

The results indicate long-term effects regarding job continuation and disease severity, although few results showed statistical significance. It is outlined that controlled long-term studies aiming at proving the general effectiveness of secondary prevention are no longer feasible in Germany, as the statutory accident insurance has led to a legal entitlement of all patients affected by occupational hand eczema to immediate preventive intervention.

Structured patient education significantly improves the disease-specific knowledge in patients with OSD. The study indicates not only positive short- but also sustainable long-term effects on the knowledge gain. The OSD-KQ can serve as a tool to evaluate and improve patient education. Health educators need to be aware of the heterogeneity regarding the participants' knowledge and take this into account during educational practice. Additional counseling may be necessary to meet the individual learners' needs.

Automated Cleansing Device may be useful for standardized evaluation of the cleansing effectiveness and parallel assessment of the corresponding irritancy potential of industrial skin cleansers. This will allow objectifying efficacy and safety of industrial skin cleansers, thus enabling market transparency and facilitating rational choice of products.

The research project shows that the quality of dermatological intervention, as well as administrative procedures, can be optimized. Early intervention with suitable preventive and therapeutic strategies in patients with OD should be aimed at, as this is crucial for the outcome of OD.