The Singapore Green Plan 2030 was released by the Singapore government to set targets for sustainability by 2030. The adoption of novel technologies, processes and substances creates new jobs, and such developments bring about new challenges and risks for both employers and workers. Beyond emerging hazards, traditional hazards still remain, but they may take on new forms through new work processes. This review aims to provide an overview of the potential occupational health issues we may encounter or anticipate in these key sectors: solar energy, waste management and recycling, green buildings, electric vehicles and battery recycling, and sustainable fuels. While existing Occupational Safety and Health regulations in Singapore serve as a foundation, there may be gaps in addressing the specific hazards and risks associated with green jobs. In this review, we propose and outline possible approaches to the protection of worker safety and health.
Singapore ; Humans ; Occupational Health ; Recycling ; Waste Management ; Solar Energy ; Occupational Exposure

INTRODUCTION: Obstructive sleep apnoea (OSA) is common in Singapore, with moderate to severe OSA affecting around 30% of residents. These consensus statements aim to provide scientifically grounded recommendations for the management of OSA, standar-dise the management of OSA in Singapore and promote multidisciplinary collaboration. METHOD: An expert panel, which was convened in 2024, identified several areas of OSA management that require guidance. The expert panel reviewed the current literature and developed consensus statements, which were later independently voted on using a 3-point Likert scale (agree, neutral or disagree). Consensus (total ratings of agree and neutral) was set a priori at ≥80% agreement. Any statement not reaching consensus was excluded. RESULTS: The final consensus included 49 statements that provide guidance on the screening, diagnosis and management of adults with OSA. Additionally, 23 statements on the screening, diagnosis and management of paediatric OSA achieved consensus. These 72 consensus statements considered not only the latest clinical evidence but also the benefits and harms, resource implications, feasibility, acceptability and equity impact of the recommendations. CONCLUSION The statements presented in this paper aim to guide clinicians based on the most updated evidence and collective expert opinion from sleep specialists in Singapore. These recommendations should augment clinical judgement rather than replace it. Management decisions should be individualised, taking into account the patient's clinical characteristics, as well as patient and caregiver concerns and preferences.
Humans ; Sleep Apnea, Obstructive/diagnosis* ; Singapore ; Consensus ; Adult

Introduction: Coronavirus disease 2019 (COVID-19) has severely influenced all aspects of life since its emergence and one of the strategies to end this pandemic rests on the vaccination to achieve herd immunity. While vaccinations are usually a safe and effective tool, the abbreviated development process of the available COVID-19 vaccines has increased uncertainties about the safety among the general population especially among patients with rheumatic and musculoskeletal diseases (RMD). Methods: A cross-sectional analysis was performed on rheumatic disease (RMD) patients from the rheumatology clinic at Hospital Tuanku Ja’afar Seremban (HTJS), investigating adverse events occurring within one month of receiving COVID-19 vaccines administered from 1st May 2021 to 30th September 2021. Results: 549 RMD patients were recruited in this study. Pfizer/BioNTech was the predominant vaccine (n = 257, 64.3%), followed by Sinovac (n = 60, 47.2%), Oxford/AstraZeneca (n = 7, 1.3%) and Moderna (n = 1, 0.2%). 330 (60.1%) patients experienced at least one adverse event, none of which required hospitalisation. Common side effects included pain at the site of injection (n = 169, 30.8%), generalised muscle pain (n = 91, 16.4%), fever (n = 90, 16.4%), arthralgia (n = 55, 10.0%), and lethargy (n = 43, 7.7%). Female patients (OR = 0.88, CI 0.79-0.97, p = 0.012), Sinovac recipients (OR = 0.51, CI 0.34-0.76, p = 0.001) and age >50 years (OR = 0.62, CI 0.44-0.89, p = 0.009) had significantly lower risks of experiencing adverse events. Among patients with autoimmune rheumatic disease (AIRD), 28 (6.4%) experienced disease flare. Patients with spondyloarthropathy (SpA) and overlap syndrome were more likely to experience disease flare following COVID-19 vaccination compared to rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE) patients (OR = 2.87, CI 1.23 – 6.69, p = 0.014). The use of combination conventional synthetic disease-modifying anti-rheumatic drugs (csDMARDs) was associated with a tendency toward increased risk of disease flare (OR = 2.34, CI: 0.97–5.64, p = 0.056). However, the use of glucocorticoids (OR = 2.02, CI 0.72–5.61, p = 0.17) and an active disease state (OR = 1.94, CI 0.75–5.02, p = 0.171) did not show a statistically significant impact on the frequency of disease flares. Conclusions The study affirms the overall safety of COVID-19 vaccines in rheumatic musculoskeletal disease patients, supporting efforts to address vaccine hesitancy in this population.
COVID-19 ; SARS-CoV-2 ; Vaccination

INTRODUCTION: Allogeneic haematopoietic stem cell transplantation (allo-HSCT) is a curative option for relapse/refractory (R/R) lymphomas that have failed autologous transplantation or for high-risk lymphomas in the upfront setting. We conducted a retrospective analysis on consecutive lymphoma patients who underwent allo-HSCT over a 20-year period (2003- 2022) at Singapore General Hospital and National University Hospital Singapore. METHOD: A total of 121 patients were included in the study. Median age was 41 years. Diagnoses include Hodgkin lymphoma (HL, 15%), B-cell non- Hodgkin lymphoma (B-NHL, 34%), T-cell non-Hodgkin lymphoma (T-NHL, 31%) and natural killer T-cell lymphoma (NKTL, 20%). Moreover, 27% of patients had prior auto-haematopoietic stem cell transplanta-tion (auto-HSCT), and 84% received reduced intensity conditioning (RIC). Donor types were matched sibling donor (45%), matched unrelated donor (29%), haploidentical donor (19%) and cord blood (CB, 7%). RESULTS: After median follow-up of 56 months, estimated 4-year progression-free survival (PFS) and overall survival (OS) for all patients were 38% and 45%, respectively. Non-relapse mortality (NRM) was 15% at day 100 and 24% at 1 year. On univariate analysis, complete remission status at transplant and RIC confers superior OS. On multivariate analysis, HL was associated with superior OS compared to NHL, whereas matched unrelated donor transplant was associated with significantly inferior OS compared to matched sibling donor. CONCLUSION Long-term curative durability was observed with allo-HSCT for patients with relapsed/ refractory lymphomas. This real-world data serves as a valuable historical benchmark for future studies on lymphomas in Singapore and the Asia Pacific region.
Humans ; Singapore/epidemiology* ; Adult ; Male ; Retrospective Studies ; Female ; Hematopoietic Stem Cell Transplantation/methods* ; Middle Aged ; Transplantation, Homologous ; Young Adult ; Transplantation Conditioning/methods* ; Lymphoma/mortality* ; Adolescent ; Hodgkin Disease/mortality* ; Aged ; Lymphoma, B-Cell/mortality*

BACKGROUND: The COVID-19 pandemic has led to innumerable challenges in the practice of physical therapy (PT) in both local and global settings. Healthcare settings often use Personal Protective Equipment (PPE) to prevent contamination. Despite its benefits, compliance is challenged by issues such as discomfort, availability, accessibility, and individual perception. OBJECTIVES: Considering the contrasting roles and nature of healthcare practitioners' work and the differences in the demands of PPE usage, this study aims to develop a profession-specific questionnaire on the perceptions of physical therapists on PPE usage in response to the COVID-19 pandemic with good face and content validity. METHODS: The study comprises Phase 1 for questionnaire development and Phase 2 for questionnaire validation. Five experts recruited using purposive sampling participated in three rounds of the validation process. Each expert evaluated the face and content validity through Google Forms. Consequently, an expert panel evaluation to reach a consensus on the final items. Google sheets were utilized for analysis. EXPECTED RESULTS The final questionnaire will have 35 items covering the Health Belief Theory domains. All items will receive FVI (overall agreement scores), I-CVI, S-CVI/Ave, and S-CVI/UA scores that meet the cut-off. The final questionnaire will be useful in evaluating physical therapists' perceptions of using PPE due to COVID-19 and may also be helpful to organizations, policymakers, and other entities in their decision-making for PPE protocols, guidelines, and implementation. Future researchers can use this study to conduct a pilot study that assesses other psychometric properties of the tool.

INTRODUCTION: Primary healthcare providers play a crucial role in educating their patients on chronic disease self-management (CDSM). This study aims to evaluate CDSM competency and satisfaction in patients receiving their healthcare from public or private healthcare providers. METHODS: A cross-sectional household study was conducted in a public housing estate using a standardised questionnaire to interview Singaporeans and permanent residents aged 40 years and above, who were diagnosed with at least 1 of these chronic diseases: hyperlipidaemia, hypertension or diabetes mellitus. CDSM competency was evaluated with the Partners In Health (PIH) scale and a knowledge based questionnaire. Satisfaction was evaluated using a satisfaction scale. RESULTS: In general, the 420 respondents demonstrated good CDSM competency, with 314 followed up at polyclinics and 106 by general practitioners (GPs). There was no significant difference between patients of polyclinics and GPs in CDSM competency scores (mean PIH score 72.9 vs 75.1, P=0.563), hypertension knowledge scores (90.9 vs 85.4, P=0.16) and diabetes knowledge scores (84.3 vs 79.5, P=0.417), except for hyperlipidaemia knowledge scores (78.6 vs 84.7, P=0.043). However, respondents followed up by GPs had higher satisfaction rates than did those followed up at polyclinics (odds ratio 3.6, confidence interval 2.28-5.78). Favourable personality of the doctors and ideal consultation duration led to higher satisfaction in the GP setting. A longer waiting time led to lower satisfaction in the polyclinic group. CONCLUSION Polyclinics and GPs provide quality primary care as evidenced by high and comparable levels of CDSM competency. Redistribution of patients from public to private clinics may result in improvements in healthcare service quality.

INTRODUCTION: The use of novel mRNA platforms for COVID-19 vaccines raised concern about vaccine safety, especially in Asian populations that made up less than 10% of study populations in the pivotal vaccine trials used for emergency use authorisation. Vaccine safety issues also remain a concern in assessing the clinical risks and benefits of vaccine boosters, particularly in specific age groups or segments of the population. This study describes a vaccination exercise involving Asian military personnel, and the adverse reactions and safety events observed. METHODS: Minor adverse reactions, hospitalisations and adverse events of special interest were monitored as part of the organisation's protocol for safety monitoring of COVID-19 vaccinations. All vaccine recipients were invited to complete an online adverse reaction questionnaire. Medical consults at the military's primary healthcare facilities were monitored for vaccine-related presentations. All hospitalisations involving vaccine recipients were analysed. Adverse reaction rates between doses, vaccines and age groups were compared. RESULTS: A total of 127,081 mRNA vaccine doses were administered to 64,661 individuals up to 24 July 2021. Common minor adverse reactions included fever/chills, body aches and injection site pain. These were more common after dose 2. Younger individuals experienced minor adverse reactions more frequently. Rare cases of anaphylaxis, Bell's palsy and myocarditis/pericarditis were observed. No deaths occurred. CONCLUSION Minor adverse reactions were less common than reported in other studies, and rates of anaphylaxis, Bell's palsy and myocarditis/pericarditis were comparable. Our study supports the favourable safety profile of mRNA COVID-19 vaccines, which may help guide decisions about booster doses if required.
COVID-19 ; COVID-19 Vaccines ; Humans ; Military Personnel ; RNA, Messenger ; SARS-CoV-2 ; Vaccines, Synthetic

Methods: We conducted a retrospective analysis on 288 patients (246 for final analysis) who underwent MSTS between 2005–2015. Data collected were demographics and peri/postoperative clinical and radiological features. Early and late radiological SF were defined as presentation before and after 3 months from index surgery, respectively. Univariate and multivariate models of competing risk regression analysis were designed to determine the risk factors for SF with death as a competing event. Results: We observed 14 SFs (5.7%) in 246 patients; 10 (4.1%) underwent revision surgery. Median survival was 13.4 months. The mean age was 58.8 years (range, 21–87 years); 48.4% were women. The median time to failure was 5 months (range, 1–60 months). Patients with SF were categorized into three groups: (1) SF when the primary implant was revised (n=5, 35.7%); (2) peri-construct progression of disease requiring extension (n=5, 35.7%); and (3) SFs that did not warrant revision (n=4, 28.5%). Four patients (28.5%) presented with early failure. SF commonly occurred at the implant-bone interface (9/14) and all patients had a spinal instability neoplastic score (SINS) >7. Thirteen patients (92.8%) who developed failure had fixation spanning junctional regions. Multivariate competing risk regression showed that preoperative Eastern Cooperative Oncology Group score was a significant risk factor for implant failure (adjusted sub-hazard ratio, 7.0; 95% confidence interval, 1.63–30.07; p<0.0009). Conclusions The incidence of SF (5.7%) was low in patients undergoing MSTS although these patients did not undergo spinal fusion. Preoperative ambulators involved a 7 times higher risk of failure than non-ambulators. Preoperative SINS >7 and fixations spanning junctional regions were associated with SF. Majority of construct failures occurred at the implant-bone interface.