Background: The aim of this thesis was to examine the association between technostress, operationalised as information and communication technology (ICT) demands, and indicators of work-related stress, as well as its association with self-rated health. Additional aims were to identify occupational groups at risk with regard to ICT demands, and to describe experiences of technostress and how it was handled by healthcare managers.

Methods: The thesis includes four individual papers. Papers I–III have a quantitative (cross-sectional or prospective) study design and are based on data derived from the Swedish Longitudinal Occupational Survey of Health (SLOSH) and collected between 2006 and 2016. Data was analysed by statistical methods, such as linear and logistic regression analysis. Paper IV has a qualitative study design and is based on data from 20 semi-structured interviews with healthcare managers. The data was analysed using the critical incident technique.

Results: ICT demands were correlated with job strain and effort-reward imbalance, especially the demands and effort dimensions of these measures. High ICT demands were associated with suboptimal self-rated health in cross-sectional analyses and in prospective analyses including repeated measurement. Managers, and particularly ‘managers in healthcare and other community services’, followed by ‘managers in education’, had the highest odds ratio of ICT demands, in comparison with both ‘non-managers’ and ‘all other managers’. Healthcare managers’ experiences of technostress could be categorised into the main areas ‘negative aspects of digital communication’, ‘poor user experience of ICTs’ and ‘needs to improve organisational resources’. The actions they took to cope with technostress were categorised into the main areas ‘culture, norms and social support’, ‘individual resources’ and ‘organisational resources’.

Conclusions: Technostress operationalised as ICT demands is associated with suboptimal self-rated health. Occupational groups differ in their exposure to ICT demands by industry and position. Organisational efforts to ensure a sustainable and healthy digital work environment are warranted. ICT demands should be assessed against ICT resources for a comprehensive understanding of their association with health.