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Fulltext The prevalence of hand arm vibration syndrome among automobile assembly workers

Shamsul Bahri Mohd Tamrin, Nor MaizuraYusoff, Anita Abd Rahman, Dayana Hazwani, M.S.N., Mansour A. Balkhyour

Malaysian Journal of Public Health Medicine, 2016;16(20):128-136.
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The objectives of this study are to determine the prevalence of hand-arm vibration (HAVS) among the automobile
assembly workers and the associated risks. A cross sectional study was conducted to determine the prevalence of
HAVS and also ascertain the association between HAVS and reduction in VPT among workers using vibration hand held
tool in automobile industry. Aim of this study was to determine the prevalence Hand Arm Vibration Syndrome
(HAVS) among vibrating hand held tool exposed workers. A cross sectional study design using structured
questionnaire and invasive measurement of vibrotactile perception threshold (VPT) at the fingertips was conducted
in one of the automobile company in Klang Valley. All the respondents were hand arm vibration exposed workers. A
total 109 assembly line workers with at least one year job tenure participated in this study. The finding revealed
that 27.5% of workers reported HAVS through questionnaire. This study consisted of 109 respondents. All of them
were male. The mean age was 32.9 years. The mean daily vibration exposure for 8-hours was 1.41m/s2. There was
11% of the tools measured were above the Action Level recommended by European Union Directive 2002. The overall
prevalence of HAVS based on reported symptom through questionnaire was 27.5%. None of the respondent reported
any whiteness at their fingers due to exposure to vibration. However, 36.7% of the respondent reported tingling
sensation and 57.8 % reported the feeling of numbness in their hands. Only 10.1% claim that the pain was
persistence. Since this study was done among exposed workers without control group, the thresholds were measured
by comparing the observed VPT with the VPT of healthy population provided by ISO 13091-2. The result showed that
98.2% of the respondent in this study having positive threshold which indicate the percentage of respondent that
having deterioration in finger tactile perception. The positive threshold from comparison above showed that the
respondent of this study was affected with the vibration exposure. The value proven that the exposure has caused
the deterioration of tactile sensitivity in 98.2% of respondent in this study which showed by having positive threshold
compared to healthy population. The result also showed that there was a significant correlation between daily
vibration exposure A (8) and VPT at both frequency tested which was 31.5Hz (r = 0.417, p = 0.002) and 125Hz (r =
0.480, p = 0.001). Even though the mean daily vibration exposure for 8-hours was low and below the recommended
level, the workers still exposed to the effect of hand arm vibration.
Fulltext Nicotine, propylene glycol and tobacco-specific nitrosamines content in selected e-liquids in Malaysia: the case support for initiation of standards or guidelines

Aziemah Zulkifli, Emilia Zainal Abidin, Najihah Zainol Abidin, Hasanah Mohd Ghazali, Praveena, Sarva Mangala, Amer Siddiq Amer Nordin, et al.

Malaysian Journal of Medicine and Health Sciences, 2018;14(102):1-9.
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Electronic Cigarette (EC) usage has been gaining acceptance in Malaysia despite its lack of analytical evidence on the chemical constituents of its liquid formulations. This study aims to evaluate the chemical concentrations of nicotine, propylene glycol (PG) and selected Tobacco-Specific Nitrosamines (TSNAs); 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) and N’-nitrosonornicotine (NNN) in e-liquids locally sourced from the Malaysian market. Methods: A total of 17 e-liquids from a variety of flavours and brands were purchased from local EC retailers in Klang Valley, Malaysia. Nicotine and PG concentrations were assessed using Gas Chromatography-Flame Ionization Detector (GC-FID) while NNK and NNN were quantified using Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS). The concentrations of nicotine and PG (mg/mL) were described in comparison with the levels indicated on the labels when present while levels of TSNAs were descriptively explained. Results: Nicotine was detected in all e-liquid samples, despite several samples being declared as nicotine-free. The average (standard deviation) level of nicotine, PG, NNN and NNK were 3.26 (1.04) mg/mL, 484.10 (98.24) mg/mL, 0.383(0.288) μg/L and 0.086 (0.057) μg/L, respectively. Labelling discrepancies (when indicated on the label) of nicotine and PG were between the range of 27%-73% and 3%-63%, respectively. Conclusion: The concentrations of nicotine and PG in local e-liquids were varied. There were evidences of labelling discrepancy in that local e-liquids. TSNAs were detected in all samples of e-liquids. This study brought forth strong evidence on the need for the implementation of regulation on e-liquid manufacturing and sales, particularly on the accuracy of labelling and licensing to protect the public health.
Fulltext Exploring antecedents and outcomes of burnout among emergency department staff using the job demands-resources model: A scoping review protocol

Yang L, Lei Y, Chu D, Jiang J, Li Z, Tang Y, et al.

PLoS One, 2024;19(3):e0300040.
PMID: 38483916 DOI: 10.1371/journal.pone.0300040

INTRODUCTION: High levels of burnout are prevalent among Emergency Department staff due to chronic exposure to job stress. There is a lack of knowledge about anteceding factors and outcomes of burnout in this population.
AIMS: To provide a comprehensive overview of burnout and identify its workplace antecedents and outcomes among Emergency Department staff.
METHODS: The scoping study will follow the methodology outlined by the Joanna Briggs Institute. PubMed, Scopus, Web of Science, APA PsycInfo, and CINAHL databases will be searched using predefined strategies. Two reviewers will screen the title, abstract and full text separately based on the eligibility criteria. Data will be charted, coded, and narratively synthesized based on the job demands-resources model.
CONCLUSION: The results will provide insights into the underlying work-related factors contributing to burnout and its implications for individuals, healthcare organizations, and patient care.
Fulltext Research hotspots and trends in healthcare workers' resilience: A bibliometric and visualized analysis

Yang L, Li Z, Lei Y, Liu J, Zhang R, Lei W, et al.

Heliyon, 2024 Aug 15;10(15):e35107.
PMID: 39170181 DOI: 10.1016/j.heliyon.2024.e35107

BACKGROUND: The resilience of healthcare workers has gained increasing attention, yet comprehensive studies focusing on recent trends and developments are scarce. We conducted an extensive bibliometric analysis from inception to 2023 to address this gap.
METHODS: Publications on healthcare workers' resilience were extracted from the Web of Science Core Collection database. Bibliometric analysis was conducted with CiteSpace, VOSviewer, and Scimago Graphica, focusing on annual publications, country/region, institution, journal, author, keyword analysis, and reference co-citation analysis related to resilience in healthcare workers.
RESULTS: The analysis included 750 documents, revealing a general upward trend in publications across 67 countries/regions, 1,251 institutions, and 3,166 authors. The USA and China emerged as the top contributors, with 192 and 168 publications, respectively. Based on keyword analysis and reference co-citation analysis, the focus areas include the Resilience Scale, the impact of the COVID-19 pandemic on HCWs and their resilience, and nurse resilience.
CONCLUSION: This study highlights the growing interest in healthcare workers' resilience by using bibliometric and visualization techniques for effective analysis. This paper will enhance scholars' understanding of the dynamic evolution of healthcare workers' resilience and identify emerging research topics.