Risk factors for lesions of the knee menisci among workers in South Korea’s national parks
نویسندگان
چکیده
BACKGROUND This study was designed to investigate the prevalence of the menisci lesions in national park workers and work factors affecting this prevalence. METHODS The study subjects were 698 workers who worked in 20 Korean national parks in 2014. An orthopedist visited each national park and performed physical examinations. Knee MRI was performed if the McMurray test or Apley test was positive and there was a complaint of pain in knee area. An orthopedist and a radiologist respectively read these images of the menisci using a grading system based on the MRI signals. To calculate the cumulative intensity of trekking of the workers, the mean trail distance, the difficulty of the trail, the tenure at each national parks, and the number of treks per month for each worker from the start of work until the present were investigated. Chi-square tests was performed to see if there were differences in the menisci lesions grade according to the variables. The variables used in the Chi-square test were evaluated using simple logistic regression analysis to get crude odds ratios, and adjusted odds ratios and 95 % confidence intervals were calculated using multivariate logistic regression analysis after establishing three different models according to the adjusted variables. RESULTS According to the MRI signal grades of menisci, 29 % were grade 0, 11.3 % were grade 1, 46.0 % were grade 2, and 13.7 % were grade 3. The differences in the MRI signal grades of menisci according to age and the intensity of trekking as calculated by the three different methods were statistically significant. Multiple logistic regression analysis was performed for three models. In model 1, there was no statistically significant factor affecting the menisci lesions. In model 2, among the factors affecting the menisci lesions, the OR of a high cumulative intensity of trekking was 4.08 (95 % CI 1.00-16.61), and in model 3, the OR of a high cumulative intensity of trekking was 5.84 (95 % CI 1.09-31.26). CONCLUSION The factor that most affected the menisci lesions among the workers in Korean national park was a high cumulative intensity of trekking.
منابع مشابه
Ergonomic Assessment of Musculoskeletal Disorders' Risk Factors in Construction Workers Using Cornell Questionnaire and WERA Method
Introduction: With regard to high prevalence of musculoskeletal disorders in the construction industry workers, the aim of this study was to investigate the prevalence of musculoskeletal disorders and their relevant risk factors in workers of a construction factory. Methods: This descriptive-analytical cross-sectional study was conducted in 2019. In this regard, 150 workers were selected from ...
متن کاملQuantification of radionuclides and associated radiological risk estimation of coal combustion residues from a South African coal-fired power plant
Background: Radionuclides occur in coal combustion residues, such as fly ash and bottom ash, which are by-products of coal combustion. They pose potential radiological risks to people present in the surrounding areas. Materials and Methods: Gamma spectrometry was performed to determine the radionuclide activity concentrations in a coal-driven power plant located in the Limpopo province, South A...
متن کاملAn examination of the effects of push and pull factors on Iranian national parks: Boujagh National Park, Iran
This article analyses the push and pull factors that bring visitors to the Iranian national parks. The study used a structured questionnaire to collect data on these factors and the socio-demographic profile of the visitors. Survey conducted in Boujagh National Park, an area of 3177 hectares located in the north of the Iran, produced 400 questionnaires. The factor analysis identified four push ...
متن کاملOccupational and demographics predictors of musculoskeletal disorders and pain disabilities in construction workers
Introduction: Work-related musculoskeletal disorders are among the most common diseases that cause absenteeism and disability. Exposure to ergonomic risk factors in construction workers increases the risk of discomfort and musculoskeletal disorders in this group. The present study investigates occupational and individual factors predicting musculoskeletal disorders and pain disabilities in cons...
متن کاملSoundscapes of Urban Parks in and around Bhubaneswar and Puri, Odisha, India: A Comparative Study
Anthropogenic noise is debatably one of the most common threats to national parks' resources. Park visitors and workers generally suffer from adverse effects of noise from on- and off-road vehicles. The parks, studied here, are located in strictly urban areas, surrounded by streets with intense vehicle traffic. This study assesses the soundscape of urban parks in two cities of Odisha State, on ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 28 شماره
صفحات -
تاریخ انتشار 2016