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.

Background: Metal work apprentices (MWAs) frequently develop work-related hand eczema (HE). Objectives: To evaluate the effect of health education on incidence of work-related HE in MWAs and to assess confounding factors. Materials/methods: In a prospective controlled intervention study, 131 MWAs received educational training on prevention of HE, whereas 172 MWAs and 118 office work apprentices served as controls. At baseline and during three yearly follow-ups, questionnaires were completed and hands were examined. Saliva samples were collected for assessment of filaggrin (FLG) null mutations and an explorative genome-wide association study (GWAS), and levels of various cytokines were assessed from stratum corneum samples.Results: The 2-year and 3-year incidence of HE in the metalwork control group was 20.9% and 32.6%, respectively, which was significantly higher than in the intervention group (odds ratio [OR] 2.63, 95% confidence interval [CI] 1.31 to 5.28, P < .01 and OR 3.47, 95% CI 1.88 to 6.40, P < .0001). The knowledge score was higher in unaffected MWAs (P < .05). Other factors significantly associated with developing

Background: In Germany, a multistep approach has been established to prevent work-related skin diseases (WRSDs). Objectives: To evaluate the effect of a secondary individual prevention program (SIP) in metalworkers with WRSD and to compare their characteristics with those of participants of a tertiary individual prevention program (TIP). Patients and Methods: In a prospective cohort study, metalworkers with WRSD of the hands participating either in the SIP (n = 114) or in the TIP (n = 83) were recruited. At baseline and at the respective follow-up 8-12 weeks after the SIP or at dismissal from the TIP (3-4 weeks later), questionnaires were completed and the severity of WRSD was assessed. Saliva samples were collected for assessment of filaggrin (FLG) mutations and an explorative genome-wide association study (GWAS). Results: Ninety-three SIP patients (81.6%) attended the follow-up. Disease severity was significantly reduced, and knowledge and protective behavior were significantly improved compared to baseline. Significant differences between SIP and TIP patients were found regarding duration and severity of symptoms, work absenteeism, tobacco smoking, and presence of atopic dermatitis, but not regarding FLG mutations and by GWAS. Conclusions: The SIP was effective in metalworkers with WRSDs. Individual factors may influence the course of the disease and the need for the TIP.

The intervention showed sustainable long-term effects. Early detection and reporting of OHE in the initial stages of the disease is of utmost importance for the effectiveness of secondary prevention. In cases of severe OHE, inpatient programmes may be indicated.