Abstract
To identify latent components from among 13 work and nonwork stressors and to examine whether the accumulation of stress factors within these components was associated with sleep problems. A cohort of older employees (n = 2771 individuals, n = 3921 person-observations) responded to at least two surveys. Principal Component Analysis (PCA) was used to identify latent components. Analysis of variance was used to examine their associations with sleep. The components were: "Physical workload and shift work," "Psychosocial workload," "Social and environmental nonwork adversity," and "Life event- and health-related nonwork adversity." They were consistently associated with sleep problems, except for "Physical workload and shift work." "Social and environmental nonwork adversity" was associated with sleep problems at follow-up. Clusters of work- and nonwork-related stressors were identified, and their accumulation was associated with sleep problems among older employees.
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