1.One-hour OGTT reveals what conventional screening misses: A hidden prediabetes burden in Malaysia
Gerard Jason Mathews ; Seetha Devi Subramanian ; Nor Shaffinaz Yusoff Azmi Merican ; Shartiyah Ismail ; Joel Mathews ; Leng Ean Charis Kong ; Chong Hui Khaw ; Shubash Shander Ganapathy ; Arvinder-Singh HS
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):1-
Introduction:
Prediabetes or intermediate hyperglycemia (IH) represents a critical phase in the trajectory toward type 2 diabetes mellitus
(T2DM). Recent evidence from the International Diabetes Federation (IDF) suggests that 1-hour OGTT (1HOGTT) ≥8.6
mmol/L is a more sensitive biomarker for early beta-cell dysfunction, with enhanced detection of IH and future T2DM
risk. Conventional screening using hemoglobin A1c (HbA1c) or 2-Hour OGTT (2HOGTT) may delay identification
of prediabetes, narrowing the window for early intervention. This study evaluates 1HOGTT as a screening tool for
prediabetes among Malaysians.
Methodology:
This cross-sectional study enrolled adults without prior T2DM or prediabetes. Participants underwent 1HOGTT, 2HOGTT,
and HbA1c, classified as per the Malaysian Clinical Practice Guideline for T2DM (6th Edition) and IDF 2024 criteria.
Agreement between tests was assessed using McNemar’s test and Cohen’s kappa. Diagnostic accuracy was evaluated
via receiver operating characteristic (ROC) curve analysis. Cost-effectiveness was determined using reagent cost only.
Results:
The majority of the 310 participants were female (71.6%), Malay (87.1%), with average age of 40. The 1HOGTT identified
prediabetes in 21.6% (n = 67) compared to 17.1% (n = 53) by HbA1c and 2.6% (n = 8) by 2HOGTT. McNemar’s test confirmed
statistically significant discordance between 1HOGTT and 2HOGTT (chi-square = 53.397, p <0.001): 61 participants were
prediabetic by 1HOGTT but normal by 2HOGTT, versus only 2 in the reverse direction. No significant discordance was
found between 1HOGTT and HbA1c (chi-square = 2.817, p = 0.093). 1HOGTT demonstrated excellent discriminatory
ability against 2HOGTT (AUC = 0.908; 95% CI: 0.837–0.978), significantly outperforming HbA1c (AUC = 0.664; CI: 0.462–
0.867; DeLong p = 0.012). In a population-level cost analysis, 1HOGTT achieved lowest cost per prediabetes case detected
(RM 5.79) – approximately 8.3 times and 8.1 times more cost-effective than 2HOGTT (RM 48.08) and HbA1c (RM 46.78)
respectively.
Conclusion
1HOGTT identifies a significant proportion of individuals with prediabetes missed by 2HOGTT and HbA1c. Incorporating 1HOGTT enhances the detection of prediabetes, is cost-effective, and enables timely preventive measures in our
population with high diabetes burden.
Glucose Tolerance Test
;
Glycated Hemoglobin
;
Prediabetic State
2.Effectiveness of a newly developed YouTube diabetes education: A multicentre randomized controlled trial
Phei Ching Lim ; Yi Woei Tang ; Jia Hui Cheng ; Leong Seng Tan ; Hooi Hoon Tan ; Chong Hui Khaw
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):7-
Introduction:
Adequate knowledge of diabetes is essential for effective self-management and glycemic control. Emerging trends in
digital platforms, video-based education offer a scalable and accessible approach to patient learning. However, evidence
on the effectiveness of validated YouTube-based diabetes education in the Malaysian population remains limited. We
aimed to evaluate the impact of a newly developed, tri-language YouTube diabetes education programme on clinical and
knowledge outcomes.
Methodology:
In this multicentre study, patients with diabetes mellitus were randomly assigned to intervention (YouTube-based education)
and control groups (standard care). The intervention consisted of newly developed and validated short educational videos
on YouTube regarding diabetes, complications and lifestyle changes, delivered weekly via WhatsApp over 9 weeks. Videos
were available in English, Malay and Chinese. The control group received standard care and counseling. Demographic
data, hemoglobin A1c (HbA1c), and knowledge scores were collected at baseline and 3 months post-intervention.
Results:
A total of 109 patients (62.4% female; mean age 53.2 years; mean diabetes duration 16.3 years) were enrolled in the
study, with similar baseline characteristics between groups. The intervention group demonstrated significantly greater
improvement in glycemic control compared to the control group (HbA1c: −1.22 ± 1.36% vs. −0.24 ± 1.05%; p <0.001). While
knowledge scores improved in both groups, the increase was significantly greater in the intervention group (2.66 vs. 0.80;
p = 0.001). Notably, improvement in knowledge score predicted HbA1c reduction (b = 0.091; 95% CI 0.01, 0.172; p = 0.028).
Conclusion
The tri-language YouTube-based diabetes education programme significantly improved both glycemic control and patients’
knowledge. This accessible, scalable video-based education represents an effective strategy to enhance diabetes selfmanagement, offering flexible, on-demand learning for diverse populations.
Social Media
;
Diabetes Mellitus
3.Effectiveness of diabetes education via mobile application (t-manis) in improving glycemic control among patients with Type 2 Diabetes
Tean Chooi Fun ; Khaw Chong Hui ; Ijaz binti Hallaj Rahmatullah ; Lim Phei Ching ; Lok Jin Lyn ; Song Li Bin ; Ye Xiaoyan
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):8-
Introduction:
Current education on diabetes self-management is time-consuming as it is conducted face-to-face. This study aimed to
evaluate the effectiveness of diabetes education via mobile application on hemoglobin A1c (HbA1c).
Methodology:
This was a double-blinded randomized controlled study conducted in the Department of Endocrinology, Hospital Pulau
Pinang and Hospital Raja Permaisuri Bainun. Participants were stratified randomized according to HbA1c to intervention
group (using T-Manis) and control group. The primary objective was to assess the difference in HbA1c between the groups.
Secondary objectives were to assess the difference in body weight, hospitalization related to diabetes, diabetes knowledge
between groups and usability and satisfaction of T-Manis. Laboratory investigations and questionnaires were conducted
at baseline, 4 months and 8 months.
Results:
A total of 112 participants were randomized into two groups each with 56 participants. Mean age was 51 years with similar
diabetes duration of 16 years in both groups. Participants comprised of 61.6% females with ethnic distribution of 49.1%
Malay, 30.4% Chinese, 19.6% Indian and 0.9% Siamese. Baseline HbA1c levels were comparable between intervention
and control groups (10.04% versus 9.91%; mean difference 0.13%; 95% CI −0.56 to 0.81; p = 0.718). At 4 months, HbA1c of
the intervention group demonstrated a significant reduction compared to the control group (8.93% versus 9.80%; mean
difference −0.86; 95% CI −1.59 to −0.14; p = 0.02). Sustained reduction of HbA1c in the intervention group was observed
at 8 months (mean difference −1.01; 95% CI −1.85 to −0.16; p = 0.02). Baseline body weight was 77 kg, with no betweengroup differences in body weight, hospitalization related to diabetes and diabetes knowledge scores, although diabetes
knowledge scores improved at 4 months in the intervention group. 89.3% of participants reported satisfaction with T-Manis
Conclusion
The T-Manis mobile application aided in significantly improving glycemic control with high user satisfaction, supporting
its feasibility as an adjunct to standard diabetes care.
Diabetes Mellitus, Type 2
;
Glycemic Control
;
Mobile Applications
;
Pangolins
4.Case Report: Severe hypertriglyceridemia in a nondiabetic treated with low dose insulin infusion
Chin Voon Tong ; Shanty Velaiutham ; Nor Azizah Aziz ; Shueh Lin Lim ; Chong Hui Khaw
The Medical Journal of Malaysia 2015;70(4):249-250
We report a case of a 54-year-old man with severe HTG
which did not respond to conventional anti lipid therapies.
He was treated with intravenous insulin and concurrent
dextrose infusions which led to a dramatic reduction in
serum triglyceride levels.
Hypertriglyceridemia
5.Radioiodine I-131 For The Therapy Of Graves’ Disease
Malik Mumtaz ; Lim Shueh Lin ; Khaw Chong Hui ; Amir Sharifuddin Mohd Khir
Malaysian Journal of Medical Sciences 2009;16(1):25-33
Graves’ disease is a common cause of hyperthyroidism. Treatment options for Graves’ disease
include antithyroid medication, surgery or radioactive iodine (I-31) or RAI. This review will focus on
the approach to RAI therapy; discussing dose selection, patient preparation, and consideration before
and after administering RAI, examining aspects of pre-treatment with antithyroid medication as well
as discussing possible adverse events including hypothyroidism and possible worsening of thyroidassociated
opthalmopathy. Follow-up is lifelong with the aim of ensuring the patient remains euthyroid
or on replacement therapy if there is evidence of hypothyroidism. While there are controversies
in treatment of thyrotoxicosis with RAI, with appropriate patient selection and regular follow-up,
radioiodine is a safe and effective modality in achieving high cure rates.


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