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Featured researches published by Koh Oh.


Asian Journal of Psychiatry | 2010

Validation of the Malay version of the Multidimensional Scale of Perceived Social Support (MSPSS-M) among a group of medical students in Faculty of Medicine, University Malaya

Chong Guan Ng; Amer Siddiq; Aida Sa; Nor Zuraida Zainal; Koh Oh

OBJECTIVE The aim of this study was to validate the Malay version of the Multidimensional Scale of Perceived Social Support (MSPSS-M) among a group of medical students in Faculty of Medicine, University Malaya. METHODS 237 students participated in the study. They were given the Malay version of MSPSS, medical outcome study (MOS) social support survey, Malay version of General Health Questionnaire (GHQ), Malay version of Beck Depression Inventory (BDI) and English version of MSPSS. A week later, these students were again given the Malay version of MSPSS. RESULTS The instrument displayed good internal consistency (Cronbachs alpha=0.89), parallel form reliability (0.94) and test-retest reliability (0.77) (Spearmans rho, p<0.01). The negative correlation of the total and subscales of the instrument with the Malay version of GHQ and BDI confirmed its validity. Extraction method of the 12 items MSPSS using principle axis factoring with direct oblimin rotation converged into three factors of perceived social support (Family, Friends and Significant Others) with reliability coefficients of 0.88, 0.82 and 0.94, respectively. CONCLUSION The Malay version of the MSPSS demonstrated good psychometric properties in measuring social support among a group of medical students from Faculty of Medicine, University Malaya and it could be used as a simple instrument on young educated Malaysian adolescents.


Asia-pacific Psychiatry | 2013

Reliability and validity of the Malay version of Attitudes toward Lesbians and Gay Men (MVATL/MVATG): a study on a group of medical students in Malaysia.

Chong Guan Ng; Lee Khing Tan; Jesjeet Singh Gill; Koh Oh; Stephen Thevananthan A L Jambunathan; Sk Pillai; Hatta Sidi

This study aims to examine the validity and reliability of the Malay version of Attitudes toward Lesbians and Gay Men (MVATL/MVATG) among a group of medical students in Malaysia.


International Journal of Environmental Research and Public Health | 2018

Metabolic Syndrome in First Episode Schizophrenia, Based on the National Mental Health Registry of Schizophrenia (NMHR) in a General Hospital in Malaysia: A 10-Year Retrospective Cohort Study

Albert Muh Haur Lee; Chong Guan Ng; Koh Oh; Jesjeet Singh Gill; Salina Abdul Aziz

Schizophrenia has been linked with various medical comorbidities, particularly metabolic syndrome. The number of studies on this aspect is lacking in Malaysia. (1) Objective: To investigate metabolic syndrome rates and its associated factors. (2) Method: This is the first 10-year retrospective-outcome study of patients with first episode schizophrenia in Malaysia. Out of 394 patients diagnosed with first episode schizophrenia and registered with the National Mental Health Registry of Schizophrenia (NMHR) in the General Hospital Kuala Lumpur (GHKL) in 2004–2005, 174 patients consented to participate in the study. They were interviewed using a Schizophrenia outcome questionnaire and the International Physical Activity Questionnaire (IPAQ). The diagnosis of metabolic syndrome was made using the National Cholesterol Education Program—Third Adult Treatment Panel (NCEP ATP III). (3) Results: All patients’ weight, body mass index, fasting blood sugar, and blood pressure are significantly increased. Sixty-three subjects (36.2%) developed metabolic syndrome while 36 (23.2%) were hypertensive, and 41 (28.1%) were diabetic. Use of fluphenthixol depot (CI = 1.05–5.09, OR: 0.84, p = 0.039), reduced physical activity (CI = 0.13–1.00, OR: −1.04, p = 0.049), and substance use disorder (CI = 1.40, 13.89, OR: 1.48, p = 0.012) were significantly associated with metabolic syndrome based on univariate analysis. In further multivariate analysis, comorbid substance abuse was the only significant factor associated with metabolic syndrome after adjusting for physical activity and intramuscular depot. (4) Conclusion: Patients with schizophrenia are at high risk of metabolic syndrome. It is important to address substance use problems as an important risk factor of this comorbidity.


Annals of General Psychiatry | 2010

Parkinson disease and Neuroleptic withdrawal

Stephen Thevananthan A L Jambunathan; Jesjeet Gil; Koh Oh; Hatim Sulaiman

Background Abrupt cessation of most psychiatric drugs leads to varying withdrawal symptoms. Although Clozapine withdrawal symptoms are well documented, this case presentation addresses issues pertaining to the severity of the withdrawals and the similarities to Neuroleptic Malignant Syndrome (NMS). This patient who was only on 100mg of Clozapine required ventilation in Intensive care unit. Neurologist found no causative factor but treated the patient symptomatically to recovery. Family history however revealed that both the patient’s parents suffered from severe Parkinson disease. This case presentation discusses the association between NMS like symptoms and neuroleptic withdrawal syndrome in patients with a family history of Parkinson disease.


The Malaysian Journal of Psychiatry | 2010

Anxiety Disorders among Incarcerated Drug Users.

Jesjeet Singh Gill; Koh Oh; Sk Pillai


The Malaysian Journal of Psychiatry | 2009

The Reliability Of Malay Version Of List Of Threatening Experiences Questionnaire: A Study On A Group Of Medical Students In Malaysia

Chong Guan Ng; Amer Siddiq An; Aida Sa; Koh Oh; Nor Zuraida Z


Hong Kong Journal of Psychiatry | 2005

First-Episode Psychosis in a Malaysian Chinese Population

Jesjeet Singh Gill; Koh Oh; Stephen Thevananthan A L Jambunathan


Acta Neurologica Belgica | 2011

Low dose quetiapine in the treatment of an adolescent with somnambulism: a case report.

Jesjeet Singh Gill; Sk Pillai; Koh Oh; Stephen Thevanathan Jambunathan


Turkish journal of psychiatry | 2010

Non-fatal paliperidone overdose: A case report

Jesjeet Singh Gill; Sk Pillai; Koh Oh; Stephen Thevananthan A L Jambunathan


The Malaysian Journal of Psychiatry | 2010

A Case of Post-Stroke Mania

Koh Oh; Azreen Hashim N; Jesjeet Singh Gill; Sk Pillai

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Aida Sa

University of Malaya

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Hatta Sidi

National University of Malaysia

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