Understanding the relationship between psychological factors of truck drivers is very important for accident prevention plans. This study investigates whether the negative work situation or work-family conflict positively affects sleep-related problems and whether sleep-related problems positively affect job dissatisfaction. The relationship was verified by structural equation modeling. The analysis was conducted with 184 truck drivers who drive daily from the 5th Korea Working Conditions Survey (KWCS) data. The structural equation modeling results found that work-family conflict (standardized path coefficient = 0.274) and negative work situation (standardized path coefficient = 0.203) had significantly affected sleep-related problems. Also, the sleep-related problems were more affected by the work-family conflict level than the negative work situation level. Sleep-related problems were found to correlate with job dissatisfaction (standardized path coefficient = 0.336). The relationship between negative work situation and work-family conflict on sleep-related problems and job dissatisfaction will help establish preventive policies for truck drivers’ safety and health.
This study aims to provide an analysis of occupational accidents in commercial kitchens by restaurant type. In this research, 1,846 injured persons of restaurant kitchens accidents from 2009 to 2011 have been categorized by Korean, Chinese, Japanese, and Western cuisine restaurants. Also, these data were analyzed in terms of properties of the workplace (size of employment), injured persons (gender, age of injured person, and work experience), and accidents (accident type and agency of accident). The results showed the following patterns by the restaurant types: (1) While accidents at Korean (72.2%), Chinese (80.8%), and Japanese (64.0%) cuisine restaurants occurred mostly in small kitchens with under 5 employees, Western cuisine kitchens of this size had an accident rate of only 39.1%; (2) 30-40% of injured persons had less than 1 year of experience in Korean, Japanese, and Western cooking, whereas in Chinese kitchens, less-experienced cooks composed a larger portion of patients (56.2%); (3) each cuisine showed different leading types of injuries. Slips and falls for Korean kitchens (29.2%), caught in and between objects for Chinese restaurants kitchens (55.3%), and cuts/amputations/punctures in Japanese and Western restaurants (42.1% and 34.8%, respectively) were the biggest contributors to injuries in each type of restaurant. These findings of accident properties according to restaurant types can be used as baseline data for establishing systemized preventive policies. C 2015 Wiley Periodicals, Inc.
Musculoskeletal pains seem to be the most prevalent among occupational diseases in older female farmers. This study analyzes the relationships between exposure to ergonomic or environmental hazards, sleep-related problems, wellbeing, and musculoskeletal pains in older female farmers. In this study, older farmer means a farmer aged ≥60, and 2005 older female farmers were selected. A structural equation model (SEM) was used to investigate the relationships. In the results of SEM, musculoskeletal pains were more affected by the level of wellbeing (standardized path coefficient = −0.149) than the level of sleep-related problems (standardized path coefficient = 0.131) or the exposure level of ergonomic hazards (standardized path coefficient = 0.086). Among the ergonomic risk factors felt by elderly female farmers, the influence level of “awkward posture” (0.735), “repetitive motion” (0.718), or “standing posture” (0.693) was greater than that of “manual material handling” (0.661). “Vibration” (0.786) and “noise” (0.683) were influential variables of environmental hazards. In addition, “upper limb pain” (0.796) and “lower limb pain” (0.751) variables were more influential variables of musculoskeletal pains than the “backache” (0.472) variable. This study shows that strategies to improve wellbeing or sleep problems are important to alleviate or prevent musculoskeletal pains among older female farmers.
The shortage and aging of drivers are not problems limited to the truck industry, but are common in the broader commercial motor vehicle (CMV) industry of Korea. This study investigates the relationships between work situation, work–family conflict, depression, and work engagement of taxi, bus, and truck drivers. We extracted 512 CMV drivers from the 5th Korea Working Conditions Survey. A structural equation model (SEM) was used to investigate the impact of a work situation or work–family conflict on depression and work engagement. Results showed that 38.9% of all respondents had symptoms of depression. In the SEM, a poor work situation (standardized path coefficient = 0.250) and work–family conflict (0.117) significantly affected depression. ‘Enough time’ and ‘feeling well’ were influential variables of work situation. ‘Responsibility’ and ‘concentration’ were influential variables of work–family conflict. Additionally, depression affected work engagement (0.524). ‘Vigor’ and ‘dedication’ were influential variables of work engagement. These results show that the relationships between work situation, work–family conflict, depression, and work engagement of CMV drivers are intricately linked.
BACKGROUND: Truck driving is one of the occupations with high injury rates. OBJECTIVE: This study investigates the relationships between age, work experience, workdays, monthly income, perceived job risk, satisfaction of working conditions, safety awareness, and job satisfaction of truck drivers. Also, this study analyzes the effects of satisfaction of working conditions and safety awareness on the job satisfaction of truck drivers. METHODS: This study interviewed 278 truck drivers and surveyed age, work experience, workdays, monthly income, perceived job risk, satisfaction of working conditions, safety awareness, and job satisfaction. A regression analysis was performed to determine leading factors affecting safety and satisfaction and the relationships. RESULTS: The results showed that the number of workdays was related to monthly income, perceived job risk, and job satisfaction. The monthly income of truck drivers was increased according to workdays and age. Perceived job risk increased with number of days worked. Safety awareness decreased with the monthly income, and job satisfaction decreased with perceived job risk level, workdays, and work experience. Finally, job satisfaction was directly affected by satisfaction with working conditions and indirectly affected by safety awareness. CONCLUSIONS: The results suggest that an increase in satisfaction of working conditions can enhance safety awareness and job satisfaction.
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