1.Work-Related Musculoskeletal Disorders Among Farmers in the Southeast Asia Region: A Systematic Review
Kurnia A. AKBAR ; Phally TRY ; Pramon VIWATTANAKULVANID ; Kraiwuth KALLAWICHA
Safety and Health at Work 2023;14(3):243-249
Background:
Southeast Asia has many people who work in the agriculture sector. Not many stakeholders pay special attention to the health of farmers, even though they are exposed to various types of hazards. One of the most common health complaints among farmers is related to work-related musculoskeletal disorders (WMSDs). This study aims to assess the prevalence of WMSDs and factors associated with them among farmers in Southeast Asia.
Methods:
A literature search on PubMed, ScienceDirect, Scopus, and EBSCO was conducted. Articles were included if they studied ergonomic problems among farmers from 11 countries in the Southeast Asia region and were published during 2015–2022. The Critical Appraisal Skills Program was used to evaluate the quality of the articles. The search process and retrieval process reflected PRISMA's recommendation.ResultThere were 14 studies found from 3 countries that had published articles in PubMed and ScienceDirect, including Thailand [8], Indonesia [4], and Malaysia [2]. The prevalence of WMSDs in Thailand, Indonesia, and Malaysia was 78,31%, 81,27%, and 88,39%, respectively. Common factors associated with WMSDs include age, sex, smoking habits, drinking alcohol habits, working period (years), type of work, awkward position, non-ergonomic equipment, repetitive movements, and lifting heavy loads.
Conclusion
The prevalence of WMSDs among farmers in Southeast Asia is considerably high. Effective intervention is essential for reducing the prevalence and protecting workers' health and well-being.
2.Black Lung Disease Among Coal Miners in Asia: A Systematic Review
Kurnia A. AKBAR ; Kraiwuth KALLAWICHA
Safety and Health at Work 2024;15(2):123-128
Background:
Coal miners are highly prone to occupational health risks, such as black lung disease. This study aims to assess the prevalence of black lung disease and the factors associated with black lung disease among coal miners in Asia.MethodThis systematic review, conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines, searched through the scientific literature of the following databases: EBSCO, ScienceDirect, PubMed, and Scopus. We selected articles that studied black lung disease among coal miners from 48 countries in Asia and were published between 2014 and 2023. Article quality was evaluated using the Critical Appraisal Skills Program.ResultThe seven articles that we review studied a total of 653,635 coal miners from various types of coal mines from three countries in Asia. Of these miners, 59,998 experienced black lung disease. Black lung disease is prevalent among 9.18% of coal miners in Asia, which is approximately four times higher than the worldwide prevalence. Common factors that influence black lung disease in Asia include age, years of dust exposure, smoking, drinking, working types, and sizes of mines, type of mines, respiratory functions, spirometry parameters, tenure, lack of attention to occupational health, inefficient surveillance, and weak occupational health service.
Conclusion
Although the prevalence of black lung disease among coal miners in Asia is considerably high, it can be addressed through effective prevention measures, monitoring, control, and case reporting.
3.Health Effects of Heavy Metal Exposure Among E-waste Workers and Community-dwelling Adults in Thailand: A Cross-sectional Study
Chonyitree SANGWIJIT ; Parichat ONG-ARTBORIRAK ; Warangkana NAKSEN ; Kraiwuth KALLAWICHA ; Pallop SIEWCHAISAKUL
Journal of Preventive Medicine and Public Health 2025;58(2):156-166
Objectives:
Global concern is increasing about the health effects of electronic waste (e-waste). This study examines the health impacts of heavy metal (HM) exposure among e-waste workers (EWWs) and community-dwelling adults (CDAs) in Northeastern Thailand and identifies factors associated with adverse health outcomes.
Methods:
A cross-sectional study was conducted of 164 EWWs and 164 CDAs. A survey was employed to collect data on participant characteristics, symptoms, anxiety, depression, and sleep quality. Urine samples were analyzed for lead (Pb) and cadmium (Cd) levels using atomic absorption spectrometry. Multiple logistic regression analysis was used to identify factors impacting health.
Results:
Across all participants, urinary Pb and Cd levels ranged from 5.30 µg/g to 29.50 µg/g creatinine and from 0.60 µg/g to 4.00 µg/g creatinine, respectively. The most frequently reported health issues pertained to musculoskeletal disorders (MSDs) at 38.70%, central nervous system (CNS) issues at 36.60%, and skin disorders at 31.10%. Multivariable analysis indicated that the presence of MSDs was significantly associated with exposure to Pb and Cd. Poor sleep quality (PSQ) was significantly linked to CNS problems, while body mass index was significantly related to skin disorders. Factors including primary education level or below, smoking, cleaning the house more than 3 times weekly, and PSQ were significantly linked to depression. Anxiety was significantly associated with PSQ.
Conclusions
Environmental exposure to Pb and Cd can have adverse health impacts in the form of MSDs. Depression and anxiety are common conditions among CDAs. Public health officials should monitor HM exposure and mental health within the community.
4.Health Effects of Heavy Metal Exposure Among E-waste Workers and Community-dwelling Adults in Thailand: A Cross-sectional Study
Chonyitree SANGWIJIT ; Parichat ONG-ARTBORIRAK ; Warangkana NAKSEN ; Kraiwuth KALLAWICHA ; Pallop SIEWCHAISAKUL
Journal of Preventive Medicine and Public Health 2025;58(2):156-166
Objectives:
Global concern is increasing about the health effects of electronic waste (e-waste). This study examines the health impacts of heavy metal (HM) exposure among e-waste workers (EWWs) and community-dwelling adults (CDAs) in Northeastern Thailand and identifies factors associated with adverse health outcomes.
Methods:
A cross-sectional study was conducted of 164 EWWs and 164 CDAs. A survey was employed to collect data on participant characteristics, symptoms, anxiety, depression, and sleep quality. Urine samples were analyzed for lead (Pb) and cadmium (Cd) levels using atomic absorption spectrometry. Multiple logistic regression analysis was used to identify factors impacting health.
Results:
Across all participants, urinary Pb and Cd levels ranged from 5.30 µg/g to 29.50 µg/g creatinine and from 0.60 µg/g to 4.00 µg/g creatinine, respectively. The most frequently reported health issues pertained to musculoskeletal disorders (MSDs) at 38.70%, central nervous system (CNS) issues at 36.60%, and skin disorders at 31.10%. Multivariable analysis indicated that the presence of MSDs was significantly associated with exposure to Pb and Cd. Poor sleep quality (PSQ) was significantly linked to CNS problems, while body mass index was significantly related to skin disorders. Factors including primary education level or below, smoking, cleaning the house more than 3 times weekly, and PSQ were significantly linked to depression. Anxiety was significantly associated with PSQ.
Conclusions
Environmental exposure to Pb and Cd can have adverse health impacts in the form of MSDs. Depression and anxiety are common conditions among CDAs. Public health officials should monitor HM exposure and mental health within the community.
5.Health Effects of Heavy Metal Exposure Among E-waste Workers and Community-dwelling Adults in Thailand: A Cross-sectional Study
Chonyitree SANGWIJIT ; Parichat ONG-ARTBORIRAK ; Warangkana NAKSEN ; Kraiwuth KALLAWICHA ; Pallop SIEWCHAISAKUL
Journal of Preventive Medicine and Public Health 2025;58(2):156-166
Objectives:
Global concern is increasing about the health effects of electronic waste (e-waste). This study examines the health impacts of heavy metal (HM) exposure among e-waste workers (EWWs) and community-dwelling adults (CDAs) in Northeastern Thailand and identifies factors associated with adverse health outcomes.
Methods:
A cross-sectional study was conducted of 164 EWWs and 164 CDAs. A survey was employed to collect data on participant characteristics, symptoms, anxiety, depression, and sleep quality. Urine samples were analyzed for lead (Pb) and cadmium (Cd) levels using atomic absorption spectrometry. Multiple logistic regression analysis was used to identify factors impacting health.
Results:
Across all participants, urinary Pb and Cd levels ranged from 5.30 µg/g to 29.50 µg/g creatinine and from 0.60 µg/g to 4.00 µg/g creatinine, respectively. The most frequently reported health issues pertained to musculoskeletal disorders (MSDs) at 38.70%, central nervous system (CNS) issues at 36.60%, and skin disorders at 31.10%. Multivariable analysis indicated that the presence of MSDs was significantly associated with exposure to Pb and Cd. Poor sleep quality (PSQ) was significantly linked to CNS problems, while body mass index was significantly related to skin disorders. Factors including primary education level or below, smoking, cleaning the house more than 3 times weekly, and PSQ were significantly linked to depression. Anxiety was significantly associated with PSQ.
Conclusions
Environmental exposure to Pb and Cd can have adverse health impacts in the form of MSDs. Depression and anxiety are common conditions among CDAs. Public health officials should monitor HM exposure and mental health within the community.
6.Factors Associated With Food Safety Knowledge And Practice Among Street Food Vendors In Taunggyi Township, Myanmar: A Cross-Sectional Study
Tin Aung Soe Htway ; Kraiwuth Kallawicha
Malaysian Journal of Public Health Medicine 2020;20(3):180-188
Food safety is a growing public health concern worldwide. Street foods are an integral part of many cultures and offer at affordable prices. However, it is associated with food safety issues, especially in developing countries. Therefore, it is essential that street food vendors understand and implement food safety practices to prevent outbreaks of food-borne illnesses. This cross-sectional study investigated the food safety knowledge and practices as well as their associated factors among street food vendors in Taunggyi Township, Myanmar. Validated structured questionnaires were used to interview 158 street food vendors, and a set of observational checklists was used to inspect the sanitary conditions of vending sites and vendors’ food hygiene practices. The association between food safety knowledge and practices was assessed using a chi-squared test. Our results revealed that most vendors had a high level of food safety knowledge and that 58.9% scored equal to or lower than the median value in food safety practices, whereas 41.1% scored higher than the median value (median=15). Sex and education level were significantly associated with participants’ food safety knowledge (p < 0.001). Similarly, education, race and monthly income were significantly associated with their food safety practices (p < 0.001), whereas food safety training attendance had no association. Additionally, participants with better knowledge scores were more likely to have better practice scores. Food safety training given to vendors should be more detailed and comply with standard guidelines, especially with regard to street food safety practices.