1.Development of the modified Safety Attitude Questionnaire for the medical imaging department.
Ravi Chanthriga ETURAJULU ; Maw Pin TAN ; Mohd Idzwan ZAKARIA ; Karuthan CHINNA ; Kwan Hoong NG
Singapore medical journal 2025;66(1):33-40
INTRODUCTION:
Medical errors commonly occur in medical imaging departments. These errors are frequently influenced by patient safety culture. This study aimed to develop a suitable patient safety culture assessment tool for medical imaging departments.
METHODS:
Staff members of a teaching hospital medical imaging department were invited to complete the generic short version of the Safety Attitude Questionnaire (SAQ). Internal consistency and reliability were evaluated using Cronbach's α. Confirmatory factor analysis (CFA) was conducted to examine model fit. A cut-off of 60% was used to define the percentage positive responses (PPR). PPR values were compared between occupational groups.
RESULTS:
A total of 300 complete responses were received and the response rate was 75.4%. In reliability analysis, the Cronbach's α for the original 32-item SAQ was 0.941. Six subscales did not demonstrate good fit with CFA. A modified five-subscale, 22-item model (SAQ-MI) showed better fit (goodness-to-fit index ≥0.9, comparative fit index ≥ 0.9, Tucker-Lewis index ≥0.9 and root mean square error of approximation ≤0.08). The Cronbach's α for the 22 items was 0.921. The final five subscales were safety and teamwork climate, job satisfaction, stress recognition, perception of management and working condition, with PPR of 62%, 68%, 57%, 61% and 60%, respectively. Statistically significant differences in PPR were observed between radiographers, doctors and others occupational groups.
CONCLUSION
The modified five-factor, 22-item SAQ-MI is a suitable tool for the evaluation of patient safety culture in a medical imaging department. Differences in patient safety culture exist between occupation groups, which will inform future intervention studies.
Humans
;
Surveys and Questionnaires
;
Patient Safety
;
Attitude of Health Personnel
;
Diagnostic Imaging
;
Reproducibility of Results
;
Male
;
Female
;
Adult
;
Job Satisfaction
;
Factor Analysis, Statistical
;
Middle Aged
;
Hospitals, Teaching
;
Safety Management
;
Organizational Culture
;
Medical Errors/prevention & control*
2.Association of COVID-19 'circuit breaker' with higher rates of elderly trauma admissions.
Yee Har LIEW ; Zhenghong LIU ; Mian Jie LIM ; Pei Leng CHONG ; Norhayati Bte Mohamed JAINODIN ; Teng Teng PEH ; Jing Jing CHAN ; Sachin MATHUR ; Jeremy Choon Peng WEE
Singapore medical journal 2025;66(2):91-96
INTRODUCTION:
In December 2019, the severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) virus emerged and caused a worldwide pandemic, leading to measures being imposed by many countries to reduce its transmission. Singapore implemented the 'circuit breaker', which restricted all movements except for access to necessities and healthcare services. We aimed to investigate the impact of lockdown measures on the pattern of trauma and its effects.
METHODS:
An observational, retrospective, single-centre descriptive study was conducted using the trauma registry in Singapore General Hospital. It included patients above 18 years old who presented to the emergency department with trauma and were subsequently admitted. Patients admitted from 1 February 2020 to 31 July 2020 and those admitted during the same timeframe in 2019 were studied. Subgroup analyses were performed for patients aged ≥65 years and those <65 years.
RESULTS:
A total of 1,037 patients were included for analysis. A 17.6% increase in trauma presentations was seen from 2019 to 2020. Patients aged ≥65 years accounted for the rise in admissions. The predominant mechanism of injury was falls at home for older patients and vehicular accidents in patients <65 years. There were no significant differences in injury severity score, intensive care/high-dependency unit admission rates, length of stay, mortality rate, and subsequent need for inpatient rehabilitation.
CONCLUSION
Our study provided information on differences in trauma presentations before and during the COVID-19 pandemic. Further studies are required to better inform on additional precautionary measures needed to reduce trauma and improve safety during future lockdowns and pandemics.
Humans
;
COVID-19/prevention & control*
;
Aged
;
Retrospective Studies
;
Singapore/epidemiology*
;
Male
;
Female
;
Wounds and Injuries/epidemiology*
;
Aged, 80 and over
;
Middle Aged
;
SARS-CoV-2
;
Hospitalization/statistics & numerical data*
;
Adult
;
Emergency Service, Hospital/statistics & numerical data*
;
Registries
;
Accidental Falls/statistics & numerical data*
;
Pandemics
;
Patient Admission/statistics & numerical data*
;
Length of Stay
;
Accidents, Traffic/statistics & numerical data*
3.National HIV programme testing recommendations.
Chiaw Yee CHOY ; Chen Seong WONG ; P Arun KUMAR ; Raymond Tzer Pin LIN ; Carmen LOW ; Matthias Paul Han Sim TOH ; Flora HUANG ; Dariusz Piotr OLSZYNA ; Yii Ean TEH ; Mei Fong Jaime CHIEN ; Sophia ARCHULETA
Singapore medical journal 2025;66(6):294-300
In recognition of the morbidity and mortality associated with human immunodeficiency virus (HIV), the Joint United Nations Programme on HIV/acquired immunodeficiency syndrome (AIDS) (UNAIDS) aims to end the epidemic by setting and striving to achieve the ambitious 95-95-95 targets. However, Singapore is still not performing well in the first UNAIDS target. The National HIV Programme (NHIVP) developed this set of recommendations based on an adaptation of major international guidelines from the World Health Organization and the US Centers for Disease Control and Prevention. The goals of this recommendation are: (1) to increase the uptake of HIV testing; (2) to allow earlier detection and identification of individuals with unrecognised HIV infection; (3) to facilitate linkage to clinical services; and (4) reduce further transmission of HIV infection in Singapore.
Humans
;
Singapore/epidemiology*
;
HIV Infections/epidemiology*
;
United States
;
HIV Testing
;
Mass Screening
;
World Health Organization
;
Practice Guidelines as Topic
;
Centers for Disease Control and Prevention, U.S.
;
National Health Programs
4.Recommendations for enhanced primary series (third dose) COVID-19 vaccination for people with rheumatic diseases: chapter of Rheumatologists, College of Physicians, Singapore.
Chuanhui XU ; Manjari LAHIRI ; Amelia SANTOSA ; Li-Ching CHEW ; Stanley ANGKODJOJO ; Melonie SRIRANGANATHAN ; Warren FONG ; Thaschawee ARKACHAISRI ; Ernest SURESH ; Kok Ooi KONG ; Aisha LATEEF ; Tau Hong LEE ; Keng Hong LEONG ; Andrea LOW ; Teck Choon TAN ; Ying-Ying LEUNG
Singapore medical journal 2025;66(10):532-539
INTRODUCTION:
This review aims to provide evidence-based recommendations for an enhanced primary series (third dose) coronavirus disease 2019 (COVID-19) vaccination in people with rheumatic diseases (PRDs) in the local and regional context.
METHODS:
Literature reviews were performed regarding the necessity, efficacy, safety and strategies for enhanced primary series COVID-19 vaccination in PRDs. Recommendations were developed based on evidence according to the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology. Evidence was synthesised by eight working group members, and the consensus was achieved by a Delphi method with nine members of an expert task force panel.
RESULTS:
Two graded recommendations and one ungraded position statement were developed. PRDs have impaired immunogenicity from the COVID-19 vaccine and are at an increased risk of postvaccine breakthrough severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and poor clinical outcomes, compared to the general population. We strongly recommend that PRDs on immunomodulatory drugs be offered a third dose of the messenger RNA (mRNA) vaccine as part of an enhanced primary series, after the standard two-dose regimen. We conditionally recommend that the third dose of mRNA vaccine against SARS-CoV-2 be given at least 4 weeks after the second dose or as soon as possible thereafter. There is insufficient data to inform whether the third mRNA vaccine should be homologous or heterologous in PRDs.
CONCLUSION
These recommendations that were developed through evidence synthesis and formal consensus process provide guidance for an enhanced primary series COVID-19 vaccination in PRDs.
Humans
;
COVID-19/prevention & control*
;
COVID-19 Vaccines/administration & dosage*
;
Rheumatic Diseases/immunology*
;
Singapore
;
SARS-CoV-2
;
Vaccination/methods*
;
Delphi Technique
;
Immunization, Secondary
5.Frontiers in subclinical atherosclerosis and the latest in early life preventive cardiology.
Mayank DALAKOTI ; Ching Kit CHEN ; Ching-Hui SIA ; Kian-Keong POH
Singapore medical journal 2025;66(3):141-146
Subclinical atherosclerosis underlies most cardiovascular diseases, manifesting before clinical symptoms and representing a key focus for early prevention strategies. Recent advancements highlight the importance of early detection and management of subclinical atherosclerosis. This review underscores that traditional risk factor levels considered safe, such as low-density lipoprotein cholesterol (LDL-C) and glycated haemoglobin (HbA1c), may still permit the development of atherosclerosis, suggesting a need for stricter thresholds. Early-life interventions are crucial, leveraging the brain's neuroplasticity to establish lifelong healthy habits. Preventive strategies should include more aggressive management of LDL-C and HbA1c from youth and persist into old age, supported by public health policies that promote healthy environments. Emphasising early education on cardiovascular health can fundamentally shift the trajectory of cardiovascular disease prevention and optimise long-term health outcomes.
Humans
;
Atherosclerosis/diagnosis*
;
Risk Factors
;
Cardiovascular Diseases/prevention & control*
;
Cholesterol, LDL/blood*
;
Glycated Hemoglobin
;
Cardiology/trends*
;
Heart Disease Risk Factors
6.Metabolic health and strategies for a Healthier SG.
Joan KHOO ; Rachel Li Cui LIM ; Lok Pui NG ; Ian Kwong Yun PHOON ; Linsey GANI ; Troy Hai Kiat PUAR ; Choon How HOW ; Wann Jia LOH
Singapore medical journal 2025;66(Suppl 1):S30-S37
This review examines strategies for the prevention and management of obesity, hypertension, type 2 diabetes mellitus and dyslipidaemia, conditions that are increasing in Singapore, as components of individualised health plans in 'Healthier SG' and beyond. We describe cardiometabolic disease prevention and management initiatives in Changi General Hospital (CGH), including collaborations with SingHealth Polyclinics, Active SG, Exercise is Medicine Singapore and community partners in the Eastern Community Health Outreach programme, and highlight advances in curable hypertension (e.g., primary hyperaldosteronism) and novel cardiovascular risk markers such as lipoprotein(a). We also outline technology-based interventions, notably the CGH Health Management Unit, which demonstrate the utility and convenience of telemedicine, and digital therapeutics in the form of apps that have been shown to improve treatment adherence and clinical outcomes. Individual empowerment, in partnership with community and healthcare providers and supported by research and innovation of care delivery, is key to building a healthier and stronger nation.
Humans
;
Singapore
;
Diabetes Mellitus, Type 2/therapy*
;
Hypertension/therapy*
;
Obesity/therapy*
;
Dyslipidemias/therapy*
;
Telemedicine
;
Cardiovascular Diseases/prevention & control*
;
Exercise
;
Metabolic Diseases/prevention & control*
7.Aviation medicine's role in safeguarding aviation safety.
Feng Wei SOH ; Jia Hao Alvin WOO ; Jason Weizheng LOW ; Kenneth Leopold FONG ; Chin Howe Robin LOW
Singapore medical journal 2025;66(Suppl 1):S57-S62
Aviation medicine safeguards flight safety by addressing three critical areas: managing physiological challenges of the aviation environment, preventing in-flight medical incapacitation and ensuring psychological fitness for flight. The field adopts occupational medicine's hierarchy of risk control to mitigate physiological risks in the operating environment, while employing systematic medical screening with tailored standards based on operational requirements to reduce the likelihood of in-flight incapacitation. A comprehensive approach incorporating mental health education, support systems and regular monitoring helps prevent psychological incapacitation. Recent data from the Singapore Changi Aeromedical Centre reveal that ophthalmological, otolaryngological and respiratory conditions are the primary causes of medical disqualification during air force pilot screening, reflecting the unique physiological demands of military aviation. This review emphasises the ongoing challenge of balancing rigorous medical standards with maintaining an adequate pilot recruitment pool, while highlighting the need for evidence-based approaches to aeromedical assessment and certification.
Humans
;
Aerospace Medicine/methods*
;
Singapore
;
Aviation
;
Pilots
;
Accidents, Aviation/prevention & control*
;
Occupational Health
;
Safety
;
Occupational Medicine
;
Military Personnel
8.Expert initiative for the prevention and control of human papillomavirus infection and related diseases among Chinese males.
Chinese Journal of Preventive Medicine 2025;59(10):1611-1619
Human papillomavirus (HPV) infection not only causes cervical cancer in women but also leads to HPV-related cancers and genital warts in men. Globally, 82 countries have adopted a gender-neutral HPV vaccination strategy to prevent and control related diseases. In China, HPV vaccination for men has now been implemented. Based on the global and domestic burden of male HPV-related diseases, evidence on the safety and efficacy of HPV vaccines in males, and lessons from international male HPV prevention efforts, a panel of experts has developed the Expert Initiative for the Prevention and Control of HPV Infection and related diseases among Chinese males after multi-round discussions. The initiative proposes: Develop comprehensive strategies for the prevention and control of male HPV infection and related diseases; prioritize and enhance public education and awareness campaigns; promote joint prevention for both men and women and advance gender-inclusive vaccination; innovate financing mechanisms to reduce the economic burden; strengthen research on male HPV infection and vaccination to facilitate the development of new vaccines; and adopt innovative immunization models to improve the quality of vaccination services.
Humans
;
Papillomavirus Infections/prevention & control*
;
Male
;
Papillomavirus Vaccines
;
China
;
Vaccination
;
East Asian People
9.Expert consensus on immunoprophylaxis of cervical cancer and other human papillomavirus- related diseases (2025 edition).
Chinese Journal of Epidemiology 2025;46(7):1107-1141
There have been recent, significant changes in strategies and policies for elimination of cervical cancer and advances in research of human papillomavirus (HPV)-related diseases and their prevention and control. Based on the latest national and international research, and building on a consensus published in 2019, we developed an expert consensus on immunoprophylaxis of cervical cancer and other human papillomavirus-related diseases (2025 edition) in order to provide clinicians, disease prevention and control professionals, and vaccination staff a reference for the prevention and control of cervical cancer and other HPV-related diseases and systematic, comprehensive evidence-based support for the scientific use of HPV vaccines to optimize their prevention effectiveness.
Humans
;
Uterine Cervical Neoplasms/virology*
;
Papillomavirus Vaccines/therapeutic use*
;
Papillomavirus Infections/prevention & control*
;
Female
;
Consensus
;
Papillomaviridae/immunology*
;
Vaccination
;
Human Papillomavirus Viruses
10.Expert consensus on preventive strategies for human papillomavirus-associated diseases in males.
Chinese Journal of Epidemiology 2025;46(9):1519-1530
Human papillomavirus (HPV) is one of the most prevalent sexually transmissible pathogens worldwide. In males HPV infection may lead to various diseases, including anogenital warts, anal cancer, oropharyngeal cancer, and penile cancer, with incidence rates of these conditions increasing in recent years across the majority of global regions. This expert consensus systematically reviews the epidemiological characteristics of HPV infection and its associated morbidities in males, delineates primary and secondary preventive strategies, and establishes recommendations in the following domains: public awareness and health education, vaccination strategies, and screening approaches. The goal is to provide theoretical foundations and practical guidance for reducing the burden of HPV infection and related diseases in males.
Humans
;
Papillomavirus Infections/epidemiology*
;
Male
;
Consensus
;
Papillomavirus Vaccines
;
Penile Neoplasms/prevention & control*
;
Human Papillomavirus Viruses

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