Depressive symptoms among Thai male seafarers during the COVID-19 pandemic: a cross-sectional study.

BACKGROUND: Prevalence of depressive symptoms among seafarers is higher than the general population because of their unique work conditions. Factors that can be changed must be considered and promptly addressed in order to decrease the prevalence of depression. This study aims to clarify the prevalence of depressive symptoms and its related factors among Thai seafarers in an effort to contribute to policies and to prevent depression among Thai seafarers. METHODS: This cross-sectional study was conducted among 381 male seafarers working onboard ocean-going vessels of five Thai shipping companies. The questionnaire items comprised of personal factors, working factors and depressive symptoms. Depressive symptoms were assessed using the Thai version of the Patient Health Questionnaire-9. First, the chi-square test was used for univariate analysis. Then, variables significantly associated by the chi-square test were used for multivariate logistic regression analysis (employing the stepwise method) as independent variables. RESULTS: The average age of participants in this study was 36.4 years. Prevalence of depressive symptoms was 19.5%. One half of the participants (58.3%) reported subjective sleep problems, and most (75.1%) experienced poor coping behaviors. Two thirds (67.5%) were officers, and 10.1% of participants reported that they sometimes or never performed occupational safety behaviors. Regarding work environments, 62.2% reported that their work was disturbed from performing repetitive tasks. Multivariate logistic regression analysis showed two personal factors; sleep problems (Adjusted Odds Ratio (AOR) = 7.97, 95% Confidence interval (CI) = 3.52-18.05) and poor coping behaviors (AOR = 4.46, 95%CI = 1.61-12.34), and three working factors; job assignment (AOR = 2.50, 95%CI = 1.33-4.70), inadequate occupational safety behaviors (AOR = 4.51, 95%CI = 1.85-11.01) and performing repetitive task (AOR = 2.27, 95%CI = 1.16-4.45), were significantly associated with depression. CONCLUSION: During COVID-19 pandemic, 19.5% of Thai male seafarers had depressive symptoms. Personal and working factors including subjective sleep problems, poor coping behaviors, job assignment, performing inadequate occupational safety behaviors and performing repetitive tasks were risk factors of depressive symptoms among Thai male seafarers. Monitoring work environment rigorously and coping with work-related stress of the occupational safety behaviors program should be suggested.

Associations of effort-reward imbalance at work and quality of life among workers after stroke: a one-year longitudinal study in Thailand.

Stroke incidence is increasing among working-age population, but the role of psychosocial stress in the workplace in predicting quality of life (QoL) after stroke onset is understudied. This longitudinal study aimed to investigate the relationship between work stress, measured by the effort-reward imbalance (ERI) model, and QoL over one-year period among 103 Thai workers who had experienced a stroke. The study evaluated the effort (E)-reward (R) ratio and over-commitment, the extrinsic and intrinsic components of the ERI model, before discharge; QoL was repeatedly measured at baseline, six months, and 12 months after discharge, respectively, using the Short Form Version 2 (SF-12v2) indicators of physical and mental health composite scores. Generalized estimating equations were used to examine longitudinal relationships between work stress at baseline and QoL over one year by testing the hypotheses that E-R ratio and over-commitment would have direct effects on QoL, and potential moderating effects of over-commitment on E-R ratio and QoL. The results supported the ERI model partially, as over-commitment was significantly associated with poor mental health (coefficient - 8.50; 95% CI: -13.79, -3.20) after adjusting baseline sociodemographic, behavioral, and clinical characteristics, while the E-R ratio was not significantly associated with physical or mental health; the interaction between the E-R ratio and over-commitment was also not significant. These findings suggest that more attention should be paid to workers' personal coping skills and ability to handle work-related problems and prioritize interventions that address over-commitment to promote long-term mental health among workers with stroke.

Mental health problems and their related factors among seafarers: a scoping review.

BACKGROUND: Seafarers are often reported to be engaged in a dangerous physical and psychosocial work environment. However, mental health status among seafarers has not been focused on compared with physical health issues. Systematic, comprehensive reviews of mental health problems and their relevant factors are lacking. This review aimed to clarify beneficial approaches to the mental health problems faced among seafarers using a scoping review to systematically map the evidence regarding mental health issues and their related factors. METHODS: Studies were searched on MEDLINE/PubMed, Science Direct, Academic search complete using EBSCOhost databases, SCOPUS, EMBASE, and Web of science on 20, August 2020. This scoping review was conducted based on the framework of Arksey and O'Malley and Preferred Reporting items for Scoping Reviews flow diagram. The inclusion criteria were studies which determined the relationship between factors relevant to working conditions or working environment, and mental health in seafarers, and etc. Data were narratively summarized and reported. RESULTS: Twenty-four were included in this review while two major findings were clarified. Firstly, the prevalence of stress, depressive symptoms, and burnout have been mentioned for decades. Secondly, factors related to mental health and psychological issues can be categorized as individual and work environmental factors. The individual factors include experience, age, health status (high BMI, poor sleep, and diabetics), and resilience. The work environmental factors consist of two parts. Job demands comprise pressure from contractors/customers/time, working hours, ship department, job title, voyage episodes, period of seafaring, noise, and vibration. The job resources included instrumental support, team cohesion, shipboard caring and effort-reward imbalance. CONCLUSIONS: A beneficial approach to mental health problems faced among seafarers is necessary to understand comprehensively at individual and organization levels. Promoting health behaviors, training resilience, and managing obesity and chronic diseases comprise individual level strategies. Providing seafarers with adequate instrumental support, and practical support to communicate with customers, managing their distinct work-rest hours and adequate effort-reward balance comprise organization level methods.

Human exposure to phthalates from house dust in Bangkok, Thailand.

The study determined concentrations of and estimated human exposure to house dust-ingested phthalates from 99 homes in Bangkok, Thailand. Phthalates in dust collected using a handheld vacuum cleaner was analyzed by gas chromatography/mass spectrometry revealing a median content of 3,477 µg g-1, range 753-13,810 µg g-1, with di-2-ethylhexylphthalate (DEHP) having the highest level (median = 1,739 µg g-1, range 467-8,172 µg g-1) followed by di-iso-nonyl phthalate (DiNP) (median = 611 µg g-1, range 15.2-11,052 µg g-1). DEHP in house dust from multi-family apartments with polyvinyl (PVC) floor material (n = 34), multi-family apartments without PVC floor material (n = 55) and single family houses without PVC floor material (n = 10) was median and range 3,009 and 568-6,898; 1,479 and range 467-8,172 and 1,207 µg g-1 and 611-3518 µg g-1, respectively. At high-end house dust DEHP level, preschool children in all three types of homes were exposed above US Environment Protection Agency reference dose (20 µg g-1). The results suggest phthalate-containing house products constitute a likely major source of phthalates in indoor home environment and pose a potential health risk to residents, particularly preschool children, in Bangkok.

Impact of Climate on the Incidence of Acute Coronary Syndrome　- Differences Between Japan and Thailand.

Background: Although there are many reports of temperature being associated with the onset of acute coronary syndrome (ACS), few studies have examined differences in ACS due to climatic differences between Japan and Thailand. The aim of this joint Japan-Thailand study was to compare patients with myocardial infarction in Japanese and Thai hospitals in different climates. Methods and Results: We estimated the climate data in 2021 for the Wakayama Prefecture and Chonburi Province, two medium-sized cities in Japan and Thailand, respectively, and ACS patients who were treated at the Wakayama Medical University (WMU) and Burapha University Hospital (BUH), the two main hospitals in these provinces (ACS patient numbers: WMU, n=177; BUH, n=93), respectively. In the Chonburi Province, although the average temperature was above 25℃, the number of ACS cases in BUH varied up to threefold between months (minimum: July, 4 cases; maximum: October, 14 cases). In Japan and Thailand, there was a mild to moderate negative correlation between temperature-atmospheric pressure at the onset of ACS, but different patterns for temperature-humidity (temperature-atmospheric pressure, temperature-humidity, and atmospheric pressure-humidity: correlation index; r=-0.561, 0.196, and -0.296 in WMU vs. r=-0.356, -0.606, and -0.502 in BUH). Conclusions: The present study suggests that other climatic conditions and factors, not just temperature, might be involved in the mechanism of ACS.

Psychometric properties and factor structure of the Vietnamese Copenhagen Burnout Inventory.

OBJECTIVES: This article examines the validity and reliability of the Vietnamese version of the Copenhagen Burnout Inventory (CBI-V) among hospital nurses in Vietnam in 2022. METHODS: This article examined data from 587 nurses in two city hospitals in Vietnam in 2022. The reliability was determined via internal consistency (Cronbach's alpha coefficient) and test-retest reliability (Intraclass correlation coefficient). Factorial and construct validity of CBI-V were explored with confirmation factor analysis (CFA), exploratory factor analysis (EFA), and correlations with other mental health outcomes (measured by the depression, anxiety, and stress scale), job performance (Work Health Performance Questionnaires), work engagement (Utrecht work engagement), and quality of life (EQ-5D-5L). Statistical analyses were performed using SPSS 20.0 and AMOS 20.0. RESULTS: Cronbach's alpha coefficients of CBI-V's three subscales showed good internal consistency (from 0.87 to 0.91). CFA showed a good fit of the three-factor model with the current data. EFA results showed that all items were loaded in accordance with the CBI's original three constructs, excluding work burnout item 7, forming the fourth factor with a single item. All of CBI-V's three subscales correlated with other constructs in expected directions. CONCLUSION: The CBI-V showed good validity and reliability among hospital nurses. It can be a reliable tool to measure burnout among nurses in a low- and middle-income country in Vietnam during such a crisis as COVID-19. Future studies should examine the construct of the Copenhagen Burnout Inventory in different occupation groups.

Interventions to prevent musculoskeletal disorders among informal sector workers: a literature review.

Despite the increasing incidence of musculoskeletal injuries among informal sector workers due to exposure to workplace risk factors, there is a dearth of literature examining the effectiveness of interventions to prevent musculoskeletal disorders. The aim of this study was to investigate the effectiveness of interventions to prevent musculoskeletal health problems and/or reduce risk factors among informal sector workers. A systematic review of the literature was conducted using an appraisal checklist developed by the Joanna Briggs Institute. The heterogeneity of the studies precluded a meta-analysis, so a narrative synthesis method was used. Eight intervention studies met the inclusion criteria. This review identified three types of interventions: 1) mechanical exposure interventions, 2) production systems/organizational culture interventions and 3) modifier intervention. These interventions provided high and moderate evidence to support the use of these strategies for prevention of musculoskeletal injuries or workplace risk. The effects, whether positive, negative or none, was influenced by sample size, sampling technique, comparison group and time examined.

Cancer risk perception and preventive behaviors among grilled meat vendors.

BACKGROUND: Polycyclic aromatic hydrocarbons (PAHs) are environmental pollutants that cause cancers in humans. Exposure results from incomplete burning of organic materials. Grilled meat vendors are occupationally exposed to PAHs in smoke from continuously burning charcoal and meat, which may have chance to get cancer. Individual risk perception is a critical antecedent of preventive behavior However relatively little is known about the cancer risk perception and preventive behaviors among grilled meat vendors. OBJECTIVE: The present study aimed to examine cancer risk perception and preventive behaviors and factors associated with preventive behaviors among grilled meat vendors in Bangkok, Thailand. MATERIAL AND METHOD: A cross-sectional survey was used in the present study. The subjects consisted of 40 males and 82 females grilled meat vendors who conducted their jobs at Victory Monument, Bang Lumpoo, Pratunam, Jakkawat or Patumwan. They were interviewed regarding cancer risk perception and preventive behaviors. Multiple logistic regression analysis was used to analyze data. RESULTS: Average cancer risk perception score was 23.3 +/- 3.3 out of 32. About 79.5% of the subjects had high risk perception. The prevalence of good preventive behaviors was 86.1%. The three most frequent preventive behaviors among the subjects during grilling meat were using good quality charcoal (65.6%), ventilation fan (41.0%) and wearing long sleeves shirt (36.1%). Only 10.7% always used gloves. Multiple logistic regression analysis showed 2 factors were independently associated with preventive behaviors: educational level and risk perception. The subjects who had higher educational level or risk perception were more likely to develop better behaviors than those who had a lower educational level and perception (p < 0.05). CONCLUSION: In conclusion, the present study found that the educational background and cancer risk perception were associated with preventive behaviors among grilled meat vendors. To improve the preventive behaviors among grilled meat vendors, interventions focusing on cancer risk perceptions and considering educational background among target group are recommended.

Factors related to work ability among Thai workers.

This study aimed to examine the factors related to work ability among small and medium enterprise (SME) workers in Thailand. The subjects consisted of 845 males and 1,163 females. They were interviewed regarding personal information, working conditions, health status, job stress and work ability. Their blood pressure, body weight and height were also measured. More than half the subjects reported high job stress. Women had higher job stress than men. The work ability index (WAI) results for managers, supervisors and operators were 42.3, 41.4 and 39.8, respectively. Job control of managers and supervisors was higher than operators. The WAI of females decreased with increasing age for those over age 45 years. Factors related to WAI were mental health, social support at work, depression and age. The results suggest job stress reduction programs should be considered to improve work ability among SME workers.

Participatory capacity building in occupational disease surveillance among primary care unit (pcu) health personnel.

This study aimed to demonstrate participatory capacity building regarding occupational disease surveillance (ODS) could enable the Primary Care Unit (PCU) health personnel provide satisfactory occupational health services for workers in the community. A needs assessment was carried out to identify gaps in PCU health personnel skills and knowledge so these areas could be strengthened. An ODS training program was developed. Fifty-nine health personnel participated in a 5 day workshop and received instructions regarding a wide range of occupational diseases, surveillance methods, prevention measures, and Ministry of Public Health (MOPH) surveillance systems. Participants self reported positive changes in knowledge and skills, as well as a high level of satisfaction with the workshop. However, many participants noted barriers to consistently implementing reporting procedures.

Occupational hazards, health conditions and personal protective equipment used among healthcare workers in hospitals, Thailand.

This cross-sectional study aimed to evaluate occupational hazards, health conditions and personal protective equipment used among healthcare workers. Information from the sample size of 1,128 healthcare workers were collected using questionnaires. The healthcare workers participated in this study were from five departments including inpatient, outpatient, surgery and anesthesia, nutrition service and hospital support services departments in five hospitals in Thailand. The results indicated that the majority of healthcare workers were female; these healthcare workers work 9.0 to 11.1 hours/day on average and were exposed to several chemical, biological and physical hazards. The healthcare workers in the nutrition service department reported the highest percentage of musculoskeletal disorder and respiratory problems. The highest percentage of skin problems were reported by healthcare workers in surgery and anesthesia department. The results showed musculoskeletal disorder, respiratory and skin problem significantly differed among healthcare workers in the five departments including the wrists/hands (p = 0.024), upper back (p = 0.009), chest pain symptoms (p = 0.004), and dry/wound symptoms (p = 0.013). Healthcare workers did not have adequate protection from work-related hazards in their workplace. Health education programs, control measures and organizational policies should be implemented to mitigate the hazards for healthcare workers in hospitals.

Mental health status among Thai hospital nurses.

OBJECTIVE: To examine the prevalence of mental health disorder and its related factors among Thai nurses. MATERIAL AND METHOD: This was cross-sectional descriptive study of 390 female nurses. They were asked to complete the questionnaire which covered personal history, working conditions, job stress and general health. Multiple logistic regression was used to estimate the odds ratio (OR) for mental health disorders. RESULTS: Results revealed that 10.3% of the nurses had poor mental health and 41.8%, had high job stress. The factors significantly associated with poor mental health were years employed, job stress, tranquilizer use and intent to leave the profession. CONCLUSION: Nurses who had high job stress and more than 20 years work experience were more likely to have poor mental health. Reduction of job stress especially in senior nurses significantly promotes mental health and may decrease prevalence of intent to leave the profession and tranquilizer use.

Risk Factors of Hearing Loss Among Thai Naval Divers.

This study aimed to clarify the prevalence of hearing loss and its risk factors among Thai naval divers. The participants were 263 military divers in the Royal Thai Navy, aged 22 to 55 years. The participants were asked to fill in a questionnaire and to undergo the examinations on hearing acuity and physical measurement. The average diving year was 16.1 years. The participants dived 2.1 times a week until to 132.3 fsw (4-5 ata) in average. Sixty-one percent of them had hearing loss. In order to determine the diving exposure dose for the participants, total diving depth was calculated from diving years, diving times a week and maximal diving depth. Multiple linear regression analysis showed the hearing level associated with total diving depth and the experience of no-decompression diving. This result suggests that the Royal Thai Navy should manage diving conditions for conserving hearing acuity of Thai naval divers.

Associations between Job Strain and Arterial Stiffness: A Large Survey among Enterprise Employees from Thailand.

As an intermediate endpoint to cardiovascular disease, arterial stiffness has received much attention recently. So far, the research on work stress and arterial stiffness is still sparse and inconsistent, and no investigations on work stress and cardiovascular health among the Thai working population have been reported. Therefore, we conducted an epidemiological study among 2141 Thai enterprise employees (858 men and 1283 women) who were free from any diagnosed cardiovascular disease. Work stress was measured using Karasek's Job Demand-Control model for job strain (a combination of high demand and low control). Arterial stiffness was evaluated by a non-invasive approach using pulse-wave analysis based on a finger photoplethysmogram. Multivariable linear regression was applied to examine associations between job strain and arterial stiffness. In men, job strain was significantly associated with arterial stiffness (ß = 0.078, 95% confidence interval = 0.026 to 0.130), after accounting for sociodemographic, behavioral, dietary and biomedical factors. However, the association in women was not significant. As the first study in Thailand on work stress and cardiovascular risk, we found that job strain might be an important risk factor for cardiovascular disease among Thai working men. Further studies with longitudinal design are warranted.

Influence of Work-Related Factors on Work Ability Among Young Cambodian Migrant Workers in Thailand.

This cross-sectional study was conducted to evaluate the effects of work-related factors on work ability among young Cambodian migrant workers in Thailand. The participants consisted of 258 Cambodian migrant workers working in farms in the northeast region of Thailand. Work-related factors consisted of a general work environment and a psychosocial factor. General work environment was assessed by perception of subjects on biological, chemical, physical, and ergonomic factors. The psychosocial factor was assessed by the Job Content Questionnaire. The Work Ability Index was used to evaluate their work ability. Logistic regression analysis was applied to test the association between work-related factors and work ability. The results indicate that a chemical work environment and psychosocial factor associated with Work Ability Index among young Cambodian migrant workers, after adjusting for sociodemographic factors. These findings suggest that improving the work environment would be the most effective way to increase the work ability of Cambodian migrant workers in Thailand.

Blood lead level and blood pressure of bus drivers in Bangkok, Thailand.

This study aims to evaluate blood lead level (PbB) and blood pressure of bus drivers in Bangkok, Thailand, after the phasing out of lead in gasoline. The subjects comprised of 439 male bus drivers whose age ranged between 23 and 59 yr with the mean age of 42 +/- 8 yr. Average working experience was 10 +/- 7 yr. The mean of the systolic and diastolic blood pressure were 131 +/- 17 and 81 +/- 11 mmHg, respectively. PbB ranged from 2.5 to 16.2 microg/dl with the mean PbB of 6.3 microg/dl. Prevalence rate of systolic and diastolic hypertension among bus drivers were 23.0% and 18.2%, respectively. There were significant correlations between PbB and blood pressure both in systolic and diastolic blood pressure after controlling for age, BMI, alcohol consumption, smoking and physical exercise. However, the data on psycho-social factors which may affect on blood pressure of bus drivers were not available. Therefore, further study is needed to clarify the relationship between blood pressure and psycho-social stress among bus drivers in Bangkok. These findings suggested lead exposure at low PbB is related to increases in blood pressure.

Age related changes in hearing level among Thai people.

The present study was conducted to develop a normal aging curve in hearing of Thai people. The subjects were 805 males and 1110 females ranging in age from 7 to 89 years. Audiometric hearing threshold testing was performed at the frequencies of 1, 2, 4 and 8 kHz. Subjects with no evidence of hearing impairment were selected for hearing level analysis. The accepted subjects comprised of 1298 ears in males and 1818 ears in females with normal hearing. A normal aging curve of hearing level at each frequency was established by calculating the 25th, 50th, and 75th percentiles for each age group. The hearing threshold level gradually increased with age and rapidly over 50 years in both sexes, in particular at 8 kHz and 4 kHz. The results showed significant correlations between the hearing level and age. There were sex differences in hearing level at the 4 kHz from the age of 40. This normal curve established from subjects with no evidence of hearing problems may be useful for monitoring hearing levels of Thai people.

The Association of Workplace Exposures on Quality of Life in Small and Medium Enterprises Workers: A Cross-Sectional Study in Four ASEAN Countries.

Quality of life is associated with several factors, including personal living styles and working conditions. This article aims to investigate the factors associated with quality of life among small and medium enterprises (SME) workers in 4 countries of the Association of Southeast Asian Nations (ASEAN), namely Malaysia, Indonesia, Thailand, and Vietnam. A total of 2014 workers from food and textile industries were asked to answer a questionnaire about their sociodemographic characteristics, working environment and conditions, and quality of life. Results from showed that lifestyle (ie, alcohol intake and exercising), working characteristics (ie, shift work, working hours, and working days) and workplace conditions were associated with SME workers' quality of life (ie, physical, psychological, social, and environmental domain). Among the 16 types of workplace conditions, "sitting on the chair" and "slippery floor" most affect their quality of life . It is important for these variables to be taken into account in promoting workers' well-being and quality of life.

Gender Differences in Depression Symptoms Among Rice Farmers in Thailand.

This study aimed to examine the prevalence of depression symptoms and risk factors by gender among rice farmers in Nakhon Ratchasima Province in Thailand. A cross-sectional study was designed using interviewed questionnaire on lifestyle, work, and depression symptoms. To examine the factors associated with depression symptoms, multiple logistic regression analysis was used. Depression symptoms were found in 39.0% of males and 48.1% of females. Eating healthy food, preparing to prevent the problem, having community integration, hearing loud machines, and using personal protective equipment during work with chemical substances were associated factors among males with depression symptoms. Having family connection, being an accepted person in community, hearing loud machines, and having work-related financial hardship were predictors among females with depression symptoms. The prevalence of depression symptoms among Thai rice farmers was high. To prevent mental health problems, it is important to give males the support for health action and working styles, and females an accepting atmosphere. Corresponding to the aim, we have to define the factor by gender.

Work Ability and Its Related Factors Among Workers in Small and Medium Enterprises: Comparison Among Four ASEAN Countries.

Work ability is related to many factors that might influence one's capacity to work. This study aimed to examine the work ability and its related factors among small and medium enterprises (SME) workers in 4 Association of Southeast Asian Nations (ASEAN) countries. The participants in this study included 2098 workers from food and textile industries in Indonesia, Malaysia, Thailand, and Vietnam. A cross-sectional survey of anonymous self-administrated questionnaire was designed to collect information on sociodemographic factors, work environment and ergonomic condition, musculoskeletal disorders, and work ability. Bivariate correlation coefficient and multiple linear regression analyses were used to predict the work ability. Results of this study confirm that work ability in 4 ASEAN countries was similar to that in European countries, and that the sociodemographic factors, work environment and ergonomic condition, and musculoskeletal disorder (MSD) were associated with work ability. These factors are important for considering occupational health and safety policy to promote work ability in food, textile, and other SME workers.