Table 1.

Overview of inclusion and exclusion criteria

	Inclusion criteria	Exclusion criteria
Population	Employees exposed to psychosocial working conditions in midlife or late life (minimum 40 years)	Diseases, disorders or medical conditions (eg, brain diseases or dementia)
Design	Longitudinal studies: observational cohort studies, case-control or randomised controlled trials	Cross-sectional studies, case studies, discussion papers, reviews, meta-analyses
Exposures	Psychosocial working conditions (eg, working hours, psychological work demands), work environment factors (eg, job control)	Chemicals (eg, solvents, manganese) physical demands, psychological distress
Outcomes	Levels of cognitive function or changes in cognitive function over time (eg, age-related cognitive decline)	Outcomes with no clear definition of cognitive function (eg, psychological health, psychological stress, depressive symptoms)