title: Towards a more comprehensive definition of shift work tolerance.
abstract: The aim of the present study was to define the nature of individual differences in shift work tolerance (SWT). This was investigated by an exploratory factor analysis of scores from a wide range of established instruments designed to measure sleep, sleepiness, fatigue, social functioning, as well as physical and mental health. Data were collected from a representative sample of 1,529 Norwegian nurses engaged in rotating shift work. The analyses yielded two factors that seemed to be especially relevant for SWT, namely "Well-being" and "Physical health". Both factors were related to several demographic and personality variables. In addition, both factors were related to job satisfaction, social support and negative acts, while Well-being was also related to coping. These results support the construct and concurrent validity of the Well-being and Physical factors of SWT. Our findings represent a step towards answering calls from previous research concerning the establishment of a wider definition of individual differences in SWT.
authors.affiliation: Department of Psychology, Norwegian University of Science and Technology, Norway.
authors.forename: Ingvild
authors.initials: I
authors.lastname: Saksvik-Lehouillier
authors.forename: Stale
authors.initials: S
authors.lastname: Pallesen
authors.forename: Bjorn
authors.initials: B
authors.lastname: Bjorvatn
authors.forename: Nils
authors.initials: N
authors.lastname: Magerøy
authors.forename: Simon
authors.initials: S
authors.lastname: Folkard
mesh_terms: D000328:Adult; D006970:Disorders of Excessive Somnolence / Q000209:etiology; D005163:Factor Analysis, Statistical; D005221:Fatigue / Q000209:etiology; D005260:Female; D006304:Health Status; D006801:Humans; D007588:Job Satisfaction; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D009664:Norway; D009726:Nurses; D016272:Occupational Health; D012890:Sleep; D058992:Social Participation; D011795:Surveys and Questionnaires; D014940:Work Schedule Tolerance / Q000502:physiology* / Q000523:psychology*; D055815:Young Adult