Shiftwork locus of control, situational and behavioural effects on sleepiness and fatigue in shiftworkers
Shiftwork locus of control, situational and behavioural effects on sleepiness and fatigue in shiftworkers
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DOI：
10.2486/indhealth.43.151
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发表时间：
2005-01-01
影响因子：
2
通讯作者：
Iso, H
中科院分区：
文献类型：
--
作者：
Smith, L;Tanigawa, T;Iso, H
许多情境和行为的个体差异缓和了倒班和夜班工作的影响。本研究的目的是确定睡眠和疲劳相关轮班结果的个体差异，并检查其潜在的相对因果影响。电力公司的轮班工人完成了一份调查问卷，测量了年龄/经验、家属人数、轮班控制点、早晚性、工作量和睡眠/健康相关行为。轮班、睡眠和疲劳结果变量也被测量。分层多元回归用于检验个体差异变量的预测贡献，并生成从情境和心理预测变量到行为变量到结果变量的路径系数。轮班工作特有的内在性显示出与睡眠和疲劳结果最系统的显著因果关系。虽然对睡眠和疲劳结果的直接因果影响不如内在因素那么强，但其他预测因素对睡眠相关行为的因果影响确实比内在因素更显著。行为变量对预测因子对结果变量的总因果效应贡献不大。结果表明，控制信念是轮班工作暴露的调节因素，这种结构在帮助更有效地针对干预措施方面的潜在效用。
A number of situational and behavioural individual differences moderate the impact of shift and night work. The aims of this study were to identify individual differences correlates of sleep and fatigue-related shiftwork outcomes and examine their potential relative causal impact. Power company shiftworkers completed a questionnaire that measured age/experience, number of dependents, shiftwork locus of control, morningness-eveningness, workload and sleep/health-related behaviours. Shiftwork sleep and fatigue outcome variables were also measured. Hierarchical multiple regression was used to examine predictive contributions of the individual difference variables and to generate path coefficients from situational and psychological predictors through behavioural variables to the outcome variables. Shiftwork-specific internality showed the most systematic significant causal relationships with sleep and fatigue outcomes. While not having as strong a direct causal influence on sleep and fatigue outcomes as internality, the other predictors did show more significant causal effects upon sleep-related behaviours than did internality. Behavioural variables made little contribution to the total causal effects of the predictors on the outcome variables. The results suggest control beliefs to be a moderating factor in shiftwork exposure and the potential utility of this construct in aiding more effective targeting of interventions.