Institute for Health and Ageing, Catholic University of Australia, Melbourne, Australia.
Centre for Bone and Arthritis Research, Geriatric Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Osteoporos Int. 2018 Mar;29(3):741-749. doi: 10.1007/s00198-017-4355-y. Epub 2018 Jan 12.
We aimed to study the risk of hip fracture and risk of hip arthroplasty among farmers in Sweden. Our results indicate that farming, representing an occupation with high physical activity, in men is associated with a lower risk of hip fracture but an increased risk of hip arthroplasty.
The risks of hip fracture and hip arthroplasty are influenced by factors including socioeconomic status, education, urbanization, latitude of residence, and physical activity. Farming is an occupation encompassing rural living and high level of physical activity. Therefore, we aimed to study the risk of hip fracture and risk of hip arthroplasty among farmers in Sweden.
We studied the risk of hip fracture, and hip arthroplasty due to primary osteoarthritis, in all men and women aged 35 years or more in Sweden between 1987 and 2002. Documented occupations were available in 3.5 million individuals, of whom 97,136 were farmers. The effects of age, sex, income, education, location of residence, and occupation on risk of hip fracture or hip arthroplasty were examined using a modification of Poisson regression.
A total of 4027 farmers and 93,109 individuals with other occupations sustained a hip fracture, while 5349 farmers and 63,473 others underwent a hip arthroplasty. Risk of hip fracture was higher with greater age, lower income, lower education, higher latitude, and urban area for all men and women. Compared to all other occupations, male farmers had a 20% lower age-adjusted risk of hip fracture (hazard ratio (HR) 0.80, 95%CI 0.77-0.84), an effect that was not seen in female farmers (HR 0.96, 95% CI 0.91-1.01). Both male and female farmers had a higher age-adjusted risk for hip arthroplasty.
Our results indicate that farming, representing an occupation with high physical activity, in men is associated with a lower risk of hip fracture but an increased risk of hip arthroplasty.
研究瑞典农民髋部骨折和髋关节置换术的风险。结果表明，男性从事体力活动强度高的农业工作，髋部骨折风险降低，但髋关节置换术风险增加。
髋部骨折和髋关节置换术的风险受社会经济地位、教育、城市化、居住纬度和体力活动等多种因素影响。农业是一种包含农村生活和高强度体力活动的职业。因此，我们旨在研究瑞典农民髋部骨折和髋关节置换术的风险。
我们研究了 1987 年至 2002 年期间瑞典所有 35 岁及以上男性和女性髋部骨折和原发性骨关节炎髋关节置换术的风险。350 万人有记录的职业，其中 97136 人为农民。使用泊松回归修正法，研究年龄、性别、收入、教育、居住地和职业对髋部骨折或髋关节置换术风险的影响。
共有 4027 名农民和 93109 名从事其他职业的人发生髋部骨折，5349 名农民和 63473 名从事其他职业的人接受髋关节置换术。所有男性和女性的髋部骨折风险均随年龄增长、收入降低、教育程度降低、纬度升高和城区增加而升高。与其他所有职业相比，男性农民髋部骨折的年龄调整风险低 20%（危险比[HR]0.80，95%CI 0.77-0.84），女性农民则未见（HR 0.96，95%CI 0.91-1.01）。男性和女性农民髋关节置换术的年龄调整风险均较高。
我们的研究结果表明，男性从事体力活动强度高的农业工作与髋部骨折风险降低相关，但髋关节置换术风险增加。
