A randomised controlled trial was conducted in a metal working plant. The primary endpoint was perceived stress reactivity (Stress Reactivity Scale, SRS). 174 participants were randomly assigned to a stress-management intervention (SMI) (IG) or a waiting control group (CG). N=174 participants (171 male) were recruited at t0, 154 (89%) were still taking part after one year (t1), 131 (76%) after 2 years. The SRS score decreased in both groups. The conducted SMI proved to be effective over both a 1- and a 2-year period.
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