1 Finnish Institute of Occupational Health, Helsinki, Finland. jaana.laitinen@ttl.fi.
2 Finnish Institute of Occupational Health, Helsinki, Finland.
3 Faculty of Management and Business, Tampere University, Tampere, Finland.
4 Faculty of Sciences, Tampere University, Tampere, Finland.
5 Faculty of Information Technology and Electrical Engineering, Oulu Advanced Research on Service and Information Systems (OASIS), University of Oulu, Oulu, Finland.
6 Kerttu Saalasti Institute, University of Oulu, Oulu, Finland.