Alberta Centre for Injury Control and Research, University of Alberta, Edmonton, Canada.
Am J Ind Med. 2010 Jul;53(7):706-15. doi: 10.1002/ajim.20811.
The average age of farmers in North America is increasing each year. Research has determined that age and health status are both related to increased risk of injury. The purpose of this research was to determine the association of health and medication factors with exposure to farm work in older male farmers.
As part of a cohort study to study determinants of injury on Saskatchewan farms, 5,502 farm people associated with 2,386 Saskatchewan farms were surveyed by mail questionnaire during the winter of 2007. The primary dependent variable was average hours per week of farm work. Independent variables included illnesses, age, and medication use.
The mean number of hours worked per week by farmers aged 55 years and older was 48. There was a significant relationship between age and hours worked with each year of age accounting for about 0.85 hr less work per week. Medication use was related to a reduction in weekly work hours during the busy fall season but was not related to work exposure averaged over the whole year. In multivariable linear regression analysis, the main contributing variables to farm work exposure were: retired status (-), working off farm (-), and age (-).
The amount of hours older farmers work on the farm is considerable compared to any other occupational category. While there is a declining trend in the amount of work, a 75-year-old farmer still works, on average, about 34 hr per week. Some farmers do appear to self-limit during busy times of the year if they are taking medication.
北美的农民平均年龄逐年增加。研究表明,年龄和健康状况都与受伤风险增加有关。本研究的目的是确定健康和用药因素与老年男性农民从事农业劳动的暴露程度之间的关系。
作为一项研究萨斯喀彻温省农场伤害决定因素的队列研究的一部分,2007 年冬季通过邮寄问卷对与 2386 个萨斯喀彻温省农场有关的 5502 名农场工人进行了调查。主要的因变量是每周平均农场工作时间。自变量包括疾病、年龄和药物使用情况。
55 岁及以上农民每周工作的平均小时数为 48 小时。年龄与工作时间之间存在显著关系,每增加一岁,每周工作时间减少约 0.85 小时。药物使用与秋季繁忙季节每周工作时间减少有关,但与全年平均工作时间无关。在多变量线性回归分析中,导致农业劳动暴露的主要变量是:退休状态(-)、非农场工作(-)和年龄(-)。
与任何其他职业类别相比,老年农民在农场工作的时间相当多。尽管工作量呈下降趋势,但 75 岁的农民平均每周仍工作约 34 小时。如果一些农民在一年中的繁忙时期服药,他们似乎确实会自我限制劳动量。