OBJECTIVES: This study aimed to evaluate the relationship between residential district of people, such as power plant, steel-mill and petrochemical industries, and health-related quality of life (HRQoL). METHODS: Using a cross-sectional study design, we randomly recruited participants for our study from industrial areas (thermoelectric power plant, steel-mill, petrochemical industry) and rural areas. Logistic regression analysis was used to identify the relationships between Euro quality of life-5 dimension (EQ-5D) scores and living region, while controlling for sociodemographic characteristics. RESULTS: In adjusted model, quality of life decreased with increasing category of age and were lower for females than males. EQ-5D scores of people living in the vicinity of thermoelectric power plant were significant lower than those of people living the vicinity of comparison region (odds ratio, 1.59; 95% confidence interval, 1.00 to 2.53). CONCLUSIONS: Living region of thermoelectric power plant, was strongly associated with scores on the EQ-5D. More research is needed to elucidate the mechanisms which makes the relationship with the living regions and HRQoL.
Chungcheongnam-do* ; Cross-Sectional Studies ; Female ; Humans ; Logistic Models ; Male ; Power Plants ; Quality of Life* ; Republic of Korea

OBJECTIVES: This study aimed to evaluate the risk factors associated with depression and suicidal ideation in a rural population. METHODS: A survey was conducted with 543 farmers from Chungcheongnam-do Province using the Center for Epidemiologic Studies Depression Scale (CES-D) for depression, Lubben Social Network Scale (LSNS) for social support, Swedish Q16 for neurotoxicity symptoms and a survey tool for farmer’s syndrome. RESULTS: After adjusting for socioeconomic factors using logistic regression analysis, poor self-rated health, low social support and neurotoxicity were positively associated with the risk of depression (odds ratio [OR], 15.96; 95% confidence interval [CI], 3.11 to 81.97; OR, 3.14; 95% CI, 1.26 to 7.82; and OR, 3.68; 95% CI, 1.08 to 12.57, respectively). The risk of suicidal ideation significantly increased with low social support, neurotoxicity and farmer’s syndrome (OR, 2.28; 95% CI, 1.18 to 4.40; OR, 6.17; 95% CI, 2.85 to 13.34; and OR, 3.70; 95% CI, 1.51 to 9.07, respectively). CONCLUSIONS: Given the overall results of this study, there is a need to establish programs which can improve the health and social relationships of farmers. Also, when farmers have neurological symptoms from pesticide exposure and characteristic symptoms of farmer’s syndrome, a monitoring system for depression and suicide must be made available.Conclusions: Given the overall results of this study, there is a need to establish programs which can improve the health and social relationships of farmers. Also, when farmers have neurological symptoms from pesticide exposure and characteristic symptoms of farmer's syndrome, a monitoring system for depression and suicide must be made available.
Chungcheongnam-do ; Depression* ; Epidemiologic Studies ; Farmers ; Logistic Models ; Risk Factors* ; Rural Population* ; Socioeconomic Factors ; Suicidal Ideation* ; Suicide

BACKGROUND: The relationship between whole body vibration and awkward neck posture to cervical herniated intervertebral disc (HIVD) has been rarely reported. In this report, we present the case of an overhead crane operator, that had no known history of neck injury, but had long-term exposure to whole body vibration and improper neck posture, who developed cervical HIVD, which raises concerns over the possibility of occupational causation. CASE: A patient, operating an overhead crane since Dec 26th 1986, began to suffer from a neck pain and developed cervical HIVD in 1998. He had been frequently treated in an outpatient clinic, but the symptom was not improve. Eventually, he got HIVD surgery in Sep 6th 2007, and then the symptom was relieved. There were 4 groups and 3 shift system in the patient's overhead crane operation. He worked eight hours a day and 5 days a week. Actual crane work time was about 6 hours a day. The crane was located at 20 meters above the work field so that the crane operator had to look downward and the neck was bent by more than 20degrees for nearly the entire working day. Daily vibration exposure was expressed in terms of an 8-hour energy-equivalent frequency-weighted acceleration magnitude (A(8)) and vibration dose value (VDV). The daily A(8) was measured to be 0.23 m/s2 and the daily VDV was 7.4 m/s(1.75). Although these levels were below the action level recommended by the International Organization for Standardization (ISO) and European Commission (EC), it cannot be ignored that whole body vibration in addition to an awkward neck posture may be related to an increased risk for neck disease. A long-term awkward posture can adversely impact the prevalence of neck disease. In addition, occupational exposure to whole body vibration along with an awkward neck posture seems to exacerbate these effects. CONCLUSION: An overhead crane operator may have acquired cervical HIVD due to an occupational causation. Therefore, to elucidate the causal relationship of an improper neck posture and whole body vibration to neck diseases, further investigations need to be conducted for lager sample of overhead crane operators that were exposed to a long-term awkward neck posture and whole body vibration.
Acceleration ; Ambulatory Care Facilities ; Humans ; Intervertebral Disc ; Neck ; Neck Injuries ; Neck Pain ; Occupational Exposure ; Posture ; Prevalence ; Vibration

OBJECTIVES: To explore the relationship between symptoms of work-related musculoskeletal disorders (WMSDs) and health-related, quality of life (QoL). METHODS: WMSDs symptoms were measured by a self-assessed questionnaire on musculoskeletal disorders symptoms and health-related QoL was measured by SF-36. Analysis of variance and logistic regression were used to analyze the relationship between WMSDs and health-related QoL. RESULTS: The prevalence of WMSDs was 64.6% in the upper limbs, 44.0% in the low back, and 39.6% in the lower limbs. Subjects with musculoskeletal symptoms had significantly lower scores on all SF-36 dimensions than those without symptoms among all body parts. Compared with the control, the case's odds ratio was higher in all SF-36 dimensions, especially for physical functioning. CONCLUSIONS: WMSDs have a negative effect on health-related QoL. The essential prevention of WMSDs requires intervention for health promotion in manufacturing workers.
Health Promotion ; Human Body ; Logistic Models ; Lower Extremity ; Odds Ratio ; Prevalence ; Quality of Life* ; Questionnaires ; Upper Extremity

Agricultural work involves many health hazards, and these can induce related health problems. However, because of low public concern and insufficient political support in the South Korean agricultural sector, agricultural health and safety is facing a serious crisis. The common work-related diseases of agricultural workers are the work-related musculoskeletal diseases like osteoarthritis of the hip and low back pain, skin diseases, pesticide poisoning, infectious and respiratory diseases, and the health effects of exposure to physical agents. For the most part, these health problems are related directly to agriculture work. Given the paucity of research into agricultural practices in Korea in general, there is little information about agricultural health and safety conditions in particular. To protect agricultural worker health and prevent the hazards related to farm work, comprehensive approaches are needed in rural areas.
Farmers ; Hazardous Substances ; Hip ; Korea ; Low Back Pain ; Musculoskeletal Diseases ; Occupational Diseases ; Osteoarthritis ; Republic of Korea ; Skin Diseases

BACKGROUND: The goal of this investigation was to evaluate the effect of aircraft noise exposure on the reproductive health among the women residents of the U.S Military Campside Town in Pyung Tak City. METHODS: The exposed group (environmental noise level, 67.7-81.5dBA) consisted of 344 women, and the control group (52.6-54dBA) 147 women. All participants were asked to fill out a self-administered questionnaire about reproductive health, menstruation related symptoms and the characteristics of the cycle. RESULTS: Self-rated menstruation related symptoms of the aircraft noise exposed group were higher than that of the control group. The age at menarche of noise exposed group was later than the control group, according to stratification by age and education level The age at postmenopause similar to the age at menarche was later that the control group. CONCLUSION: The exposure to aircraft noise can be considered to have detrimental risk to the reproductive health of wemen.
Aircraft* ; Education ; Female ; Gyeonggi-do* ; Humans ; Menarche ; Menstruation ; Military Personnel* ; Noise* ; Postmenopause ; Reproductive Health* ; Surveys and Questionnaires

BACKGROUND: The aim of this cross-sectional study was to evaluate the effects of shift work on life style and blood pressure in male shift workers. METHODS: The study population included 617 male workers, with 2 year work experience. The participants were divided into two groups (259 shift workers/358 non-shift workers) according to shift work. The differences in life style, cardiovascular risk factors such as blood pressure and job strain were compared among the two groups. RESULTS: The shift work group was associated with increased age, higher smoking rate, more regular exercise and less job demand (P<0.05). In comparison of blood pressure by general characteristics and job stress, systolic blood pressure was significantly increased in drinking and obese workers and diastolic blood pressure significantly increased in obesity and low decision latitude. The association between shift work and blood pressure by age groups was confirmed by multivariate general linear model analysis including age, smoking, drinking, exercise, obesity and job stress. CONCLUSION: The results showed that exercise, smoking, and job stress were significantly different in the shift worker group compared to non-shift worker group.
Blood Pressure* ; Cross-Sectional Studies ; Drinking ; Humans ; Life Style* ; Linear Models ; Male* ; Obesity ; Risk Factors ; Smoke ; Smoking

OBJECTIVES: To investigate the pulmonary function changes of ozone exposure in Corona and Slitter workers exposed to an ozone level ranging from 0.022~0.061 ppm. METHODS: Forty-two subjects were exposed for 8hrs to ozone every day. We perfomed pulmonary function testing immediately before and after work and self-administered, portable peak flow meter measurements were self-conducted by the workers over a 5-day (Monday to Friday) period. RESULTS: Ozone concentrations in the workplace ranging from 0.050~0.061 ppm at Corona and 0.022~0.023 ppm at Slitter in 2006. A small decrement in forced-vital capacity were observed among Corona workers from 93.9% to 91.3% (p=0.012) and also in employment duration below ten years. We found no significant differences in before and after FVC and FEV1 among Slitter workers. All daily (Monday to Friday) peak expiratory flow rates declined in magnitude after two days of ozone exposure, compared with first day exposure. CONCLUSION: We concluded that daily ozone exposure in the workplace slightly decreased pulmonary function and that PEFR variability is greatest on the 2nd day of ozone exposure.
Employment ; Ozone* ; Peak Expiratory Flow Rate ; Respiratory Function Tests

Background: Glyphosate and glufosinate use widely used as herbicide ingredients. There have been several reported cases of chemical burns caused by dermal exposure to glyphosatecontaining herbicide, and patients in these cases were discharged without fatal complications.There were no cases of severe symptoms due to non-oral exposure of glufosinate-containing herbicides. Here, we report a case of fatality accompanied with severe chemical burns in an 81-year-old man who did not wash his skin for more than 48 hours after dermal exposure to herbicide containing glyphosate and glufosinate with surfactant (HGlyGluS).Case presentation: An 81-year-old male with no underlying disease was admitted to the emergency department (ED). He had sprayed HGlyGluS with a manual knapsack sprayer 3 days ago and had not wash away the herbicide. On arrival, he was drowsy and had multiple severe corrosive skin lesions. Skin necrosis (10 × 15 cm) on the right shoulder and skin lesions with subcutaneous fat exposure (15 × 20 cm) on the right thigh were observed. Although he was treated including continuous renal replacement therapy, antibiotic apply, debridement operations, and so on, he was unable to recover and expired. Conclusions We suggest that prolonged dermal exposure to HGlyGluS induces fatality.Further studies including prolonged dermal exposure and ingredients of surfactants should be carried out. Also, it is necessary to educate farmers that it is very important to wash immediately after dermal exposure to pesticide.

BACKGROUND: The objective of the present study is to identify differences in the prevalence of acute occupational pesticide poisoning across Korean orchard farmers' farming characteristics and the risk factors that have an effect on acute occupational pesticide poisoning. METHODS: For 3 years (2014, 2015, and 2017), a questionnaire survey was conducted on 394 orchard farmers in some parts of south Chungcheong Province in relation to pesticide poisoning. 323 orchard farmers who responded to acute occupational pesticide poisoning were included for final analysis. With acute occupational pesticide poisoning as the dependent variable, a χ² test and a multiple logistic regression analysis were conducted. RESULTS: The results of the prevalence of acute occupational pesticide poisoning across farming characteristics showed that the group wearing 4 or more pesticide personal protective equipment (PPE) had a lower prevalence of acute occupational pesticide poisoning than the group wearing 3 or less pesticide PPE (p < 0.05). Furthermore, an analysis by area of fruit farming revealed that the group with more than 12,000m² in the area of fruit farming had a higher prevalence of acute occupational pesticide poisoning (p < 0.05). Orchard farmers mainly use a speed sprayer to spray pesticides, and the speed sprayer can be categorized by presence of cabin. The analysis of the prevalence of acute occupational pesticide poisoning by speed sprayer's cabin existence found that existence of speed sprayer's cabin did not show a statistically significant difference in the prevalence of acute occupational pesticide poisoning. CONCLUSIONS The present study analyzed the prevalence of acute occupational pesticide poisoning depending on the speed sprayer's cabin existence and found no significant difference. The fact that famers using the cabinless style speed sprayer shows a higher percentage in wearing PPE than those using the cabin style speed sprayer is suggested to elucidate the result. As the first study in Korea which examined the prevalence of acute occupational pesticide poisoning by speed sprayer's cabin existence, the present study proposes the expected effect that increase of wearing pesticide PPE along with employ of speed sprayer's cabin can reduce the prevalence of acute occupational pesticide poisoning among orchard farmers.