The Work Ability Index (WAI)

A brief historyOur multidisciplinary study group (occupational physiology, psychology, medicine, epidemiology and biostatistics) started cross-sectional studies among municipal employees in 1981.The study participants were followed for 16 years [1,2].Since the beginning, the use of Work Ability Index (WAI) both in research and practice has widened to various countries, and the index has been translated into 24 languages.