engleski

Is tolerance to shiftwork predictable from individual differences?

A total of 604 shiftworkers and 185 young workers who are starting to work in shifts were administered a battery of questionnaires. The individual difference measures included: neuroticism, extraversion, lie scale, hard driving and competitiveness, speed and impatience, relaxedness, efficiency, eveningness, rigidity of sleeping habits, ability to overcome drowsiness, age and work experience. The subjective health complaints, which are considered to be the signs of intolerance to shiftwork, included: musculo skeletal, respiratory and psychosomatic digestive complaints, digestive problems and generally poor health. The individual difference and subjective health questionnaires were administered to the group of shiftworkers concurrently. In the group of young workers the questionnaires were administered before entering the shiftwork. The subjective health questionnaire was repeated after the first and third year of shiftwork experience. In the group of workers already involved in shiftwork more health complaints reported the workers who were neurotic, hard driving and competitive, speedy and impatient, not relaxed, not efficient, rigid in sleeping habits, not able to overcome drowsiness and with longer shiftwork experience. The dimensions: efficiency, rigidity in sleeping habits and speed and impatience, when taken before entering the shiftwork correlated significantly with some of the subjective health complaints obtained after few years in shifts, but to a smaller degree than when obtained concurrently.

shiftwork; tolerance; personality

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