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Document ID (ISN)111976
CIS number 11-0725
ISSN - Serial title 0003-6870 - Applied Ergonomics
Year 2011
Convention or series no.
Author(s) Natvik S., Bjorvatn B., Moen B.E., Mager°y N., Sivertsen B., Pallesen S.
Title Personality factors related to shift work tolerance in two- and three-shift workers
Bibliographic information July 2011, Vol.42, No.5, p.719-724. 53 ref.
Abstract This study aimed to investigate whether personality variables were associated with shift work tolerance, and whether these potential associations were moderated by various types of shift work. The sample comprised 1505 nurses who worked either two or three rotating shifts. Personality traits were measured in terms of morningness, flexibility, languidity and hardiness. Morningness reflects the tendency to be alert relatively early in the morning and sleepy relatively early in the evening. Flexibility denotes the ability to both work and sleep at odd times of the day, while languidity concerns the tendency to become tired/sleepy when cutting down on sleep. Hardiness relates to resilience to stressful life events. The dependent variables in this study comprised of measures of insomnia, sleepiness, depression and anxiety. Hierarchical regression analyses, which controlled for demographic variables and work load, revealed that morningness was significantly and negatively related to insomnia. The morningness by shift type interaction was overall significant for depressive symptoms. Morningness was associated with lower levels of depressive symptoms in three-shift workers, but unrelated to depressive symptoms in two-shift workers. Flexibility was associated with higher levels of depressive symptoms. Flexibility by shift type interaction was significant for insomnia, indicating that flexibility was negatively associated with insomnia for three-shift workers and unrelated with insomnia for two-shift workers. Languidity was associated with higher levels of sleepiness, depressive and anxiety symptoms. Hardiness was associated with lower levels of all four dependent variables.
Descriptors (primary) Norway; shift work; character; women; hospitals; nursing personnel; risk factors
Descriptors (secondary) state of health; anxiety; depressive neurosis; fatigue; sleep disturbances; mental health; questionnaire survey; statistical evaluation; individual susceptibility
Document type D - Periodical articles
Subject(s) Commerce, services, offices
Occupational physiology
Broad subject area(s) Physiology, ergonomics
Browse category(ies) Women
Health care services
Hours of work
Fatigue