Song Han Soo, Kim Dong Hwi, Lee Gwang Chul, Kim Kweon Young, Ryu So Yeon, Lee Chul Gab
Department of Occupational and Environmental Medicine, Chosun University Hospital, Gwangju, Korea.
Department of Orthopedic Medicine, Chosun University Hospital, Gwangju, Korea.
Ann Occup Environ Med. 2020 Nov 13;32:e37. doi: 10.35371/aoem.2020.32.e37. eCollection 2020.
Several studies have reported a high prevalence of osteoarthritis (OA) of the knee among agricultural workers. We investigated work-related factors that increase the risk of knee OA among Korean farmers.
Data were extracted from the Jeonnam Center for Farmer's Safety and Health survey, conducted between 2013 and 2015. The sample included 489 farmers (man 240, woman 249). We defined knee OA as radiographic knee OA (≥ Kellgren-Lawrence grade 2) with symptoms (≥ Western Ontario and McMaster Universities Osteoarthritis, Korean version score 29.5). We considered covariates such as cumulative squatting working time (CSWT), cumulative heavy lifting working time (CLWT), body mass index (BMI), and history of knee injury. Odds ratios (ORs) and their corresponding 95% confidence intervals (CIs) were calculated for knee OA and adjusted for relevant covariates.
The results of multivariate logistic regression analysis indicated that knee OA was correlated by factors such as sex, age, BMI, history of knee injury, CSWT, and CLWT. Particularly, CSWT > 20,000 hours (OR: 2.83; 95% CI: 1.35-5.92; reference < 10,000 hours) and CLWT > 5,000 hours (OR: 2.62; 95% CI: 1.14-6.06; reference < 2,000 hours) were associated with an increased risk of knee OA after adjustment for covariates.
Squatting posture and heavy lifting associated with farm work might increase the risk of knee OA among Korean farmers.
多项研究报告称，农业工人中膝关节骨关节炎（OA）的患病率很高。我们调查了韩国农民中增加膝关节OA风险的工作相关因素。
数据取自2013年至2015年进行的全南农民安全与健康中心调查。样本包括489名农民（男性240名，女性249名）。我们将膝关节OA定义为有症状的放射学膝关节OA（≥Kellgren-Lawrence分级2级）（≥韩国版西安大略和麦克马斯特大学骨关节炎指数评分29.5）。我们考虑了诸如累计蹲姿工作时间（CSWT）、累计重物搬运工作时间（CLWT）、体重指数（BMI）和膝关节损伤史等协变量。计算膝关节OA的比值比（OR）及其相应的95%置信区间（CI），并对相关协变量进行调整。
多因素逻辑回归分析结果表明，膝关节OA与性别、年龄、BMI、膝关节损伤史、CSWT和CLWT等因素相关。特别是，在对协变量进行调整后，CSWT>20000小时（OR：2.83；95%CI：1.35-5.92；参照<10000小时）和CLWT>5000小时（OR：2.62；95%CI：1.14-6.06；参照<2000小时）与膝关节OA风险增加相关。
与农活相关的蹲姿和重物搬运可能会增加韩国农民患膝关节OA的风险。
