Chau N, Khlat M
INSERM, U669, Paris, France.
Int Arch Occup Environ Health. 2009 Jul;82(7):857-66. doi: 10.1007/s00420-009-0394-9. Epub 2009 Feb 18.
To assess the association between physical job demands (PJD) and physical/cognitive functional limitations, and the role of adverse health behaviours, obesity, and socio-demographic factors as confounders of those associations.
The sample included 3,368 active subjects aged 18-64 years, randomly selected from North-eastern France. Subjects completed a post-mailed questionnaire. PJD score was defined as the product of years of employment with the cumulative number of a wide range of high job demands. Data were analysed through the logistic regression models.
The physical and cognitive functional limitations affected 16.9 and 28.6% of subjects, respectively. A strong relationship was found between PJD and physical functional limitation: significant odds ratios (OR) adjusted for all the factors studied 1.41 for PJD1-29, 1.72 for PJD30-99, and 2.57 for PJD >or=100 versus PJD0; and between PJD and cognitive functional limitation: OR 1.28 for PJD1-29, 1.60 for PJD30-99, and 2.00 for PJD >or=100 versus PJD0. Adverse health behaviours, obesity and job category were modest confounders of those associations.
This study identified a wide range of job demands and individual characteristics related to physical/cognitive functional limitations. Prevention should aim at improving working conditions and adverse health behaviours.
评估体力工作需求（PJD）与身体/认知功能受限之间的关联，以及不良健康行为、肥胖和社会人口学因素作为这些关联混杂因素的作用。
样本包括从法国东北部随机选取的3368名18 - 64岁的在职人员。受试者完成一份邮寄问卷。PJD得分定义为就业年限与一系列高强度工作需求累计数量的乘积。通过逻辑回归模型分析数据。
身体和认知功能受限分别影响了16.9%和28.6%的受试者。发现PJD与身体功能受限之间存在密切关系：在对所有研究因素进行调整后，PJD 1 - 29的显著比值比（OR）为1.41，PJD 30 - 99为1.72，PJD≥100相对于PJD 0为2.57；PJD与认知功能受限之间：PJD 1 - 29的OR为1.28，PJD 30 - 99为1.60，PJD≥100相对于PJD 0为2.00。不良健康行为、肥胖和工作类别是这些关联的适度混杂因素。
本研究确定了与身体/认知功能受限相关的广泛工作需求和个体特征。预防应旨在改善工作条件和不良健康行为。
