Explaining presenteeism behaviour with the theory of planned behaviour - a longitudinal study.

Purpose: This study uses the Theory of Planned Behaviour (TPB) to explore presenteeism, where individuals work despite being ill. The research seeks to understand how attitudes, subjective norms, and perceived behavioural control are associated with presenteeism behaviours.

Methods: A longitudinal design was employed, involving 2814 employees from 16 companies. Data were collected using a survey on two measurement points, which included validated scales and vignettes to assess attitudes toward presenteeism. The data were analysed using cluster analysis and a linear mixed effects regression to evaluate the TPB model.

Results: Three clusters of attitudes toward presenteeism were identified through cluster analysis. The model explained 27.8% of the variance in the fixed effects and 52.6% in the combined fixed and random effects. The regression model found associations between presenteeism and factors such as quantitative demands, work-privacy conflict, and leadership culture. Attitudes towards presenteeism were a strong predictor, with specific clusters showing differing propensities to work while ill.

Conclusion: The study confirms the suitability of the TPB in explaining presenteeism. It highlights the importance of individual attitudes, subjective norms, and perceived behavioural control in shaping presenteeism. The findings suggest that promoting a health-supportive workplace culture, including open communication about illness, might reduce presenteeism.