Publications by authors named "Ker Chiah Wei"

Background: This study aims to identify disability classes among people with schizophrenia spectrum disorder, depression, anxiety or diabetes via the WHODAS 2.0; investigate the invariance of disability patterns among the four diagnostic groups; and examine associations between disability classes and sociodemographic variables.

Methods: Patients seeking treatment for schizophrenia spectrum disorder, depression, anxiety or diabetes (n=1076) were recruited.

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Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social interaction and the presence of restricted and repetitive patterns of behavior. Making a first diagnosis of ASD in adults has certain difficulties, including inaccurate recall of developmental history and overlapping behaviors with other psychiatric conditions. This case study presents a young man who was assessed to have no major mental illness during his first visit to emergency services in a psychiatric hospital.

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Aggression is defined as "any behavior intended to cause physical, emotional, or psychological harm to another." The aims of the current study were to (i) examine underlying factor structure of the Buss-Perry Aggression Questionnaire (BPAQ) and (ii) explore socio-demographic and clinical correlates (symptom severity, substance use and alcohol use) among patients with schizophrenia and related psychoses in a multi-ethnic Asian population. Data collected from 397 participants who were seeking outpatient treatment for schizophrenia and related psychoses at a tertiary psychiatric hospital were included in the analyses.

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Objective: The aim of this study is to shed light on the types of services utilized and map the steps taken by patients in their pathways to receiving psychiatric care in Singapore.

Methods: Participants were outpatients who were recruited from a psychiatric tertiary hospital (n = 323). Pathways to psychiatric care form was administered to collect information on sources of care utilized, reasons for seeking help and the time point of each contact made.

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Background: Phenotypic similarities exist between autism-related experiences and anxiety (especially social anxiety and obsessive-compulsive disorder [OCD]), making it difficult for autistic people to self-report their experiences using existing measures developed for nonautistic adults. We examined whether clarifications aiming to tease out autism-related experiences from social anxiety or OCD in self-report questionnaires would influence autistic and nonautistic participants' ratings.

Methods: Two autistic consultants and two experienced clinicians were consulted to develop item clarifications aiming to disentangle autistic from anxiety experiences for two questionnaires: the Social Anxiety Questionnaire (SAQ) and the Padua Inventory (PI) for OCD.

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Objective: In light of the current evolving coronavirus disease 2019 (COVID-19) pandemic, and the need to learn from past infectious disease outbreaks to provide better psychological support for our frontline health care workers (HCW), we conducted a rapid review of extant studies that have reported on both psychological and coping responses in HCW during recent outbreaks.

Data Sources: We performed a systematic search of the available literature using PubMed, MEDLINE (Ovid), and Web of Science, combining key terms regarding recent infectious disease outbreaks and psychological and coping responses. Papers published from database inception to April 20, 2020, were considered for inclusion.

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Background: Mental illnesses pose a significant burden worldwide. Furthermore, the treatment gap for mental disorders is large. A contributor to this treatment gap is the perceived stigma towards mental illness.

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Introduction: The Adult Neurodevelopmental Service in Singapore is the first service of its kind in South-East Asia for adults with intellectual disability (ID) and/or autism spectrum disorder (ASD). However, few studies have documented and compared the sociodemographic characteristics and clinical needs of this subpopulation group.

Methods: Initial assessments conducted from 1 January 2015 to 31 December 2016 were retrospectively reviewed for this descriptive study.

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Introduction: Emerging infectious disease outbreaks, such as the present coronavirus disease 2019 (COVID-19) pandemic, often have a psychological impact on the well-being of the general population, including survivors and caregivers. Our study aimed to synthesise extant literature regarding the combined psychological responses and coping methods used by the general population in past outbreaks.

Methods: We conducted a narrative synthesis of the published literature over the last two decades with a quality appraisal of included articles that reported both psychological responses and coping strategies within infectious disease outbreaks.

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Illness perceptions are beliefs that patients have about their illness. These beliefs play an important role in influencing their behaviour and outcomes. This study examined the factor structure and correlates of the Illness Perception Questionnaire Mental Health (IPQ-MH) among patients with mental illness in a multi-ethnic Asian sample.

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Background: Pathways to care studies in Singapore are of high interest given the cultural diversity and various sources of help available for those with mental illnesses, ranging from the more traditional to tertiary-level mental health care services.

Aim: The current study aimed to explore the associations of patients' socio-demographic characteristics with pathways to first contact and duration of untreated mental illness.

Method: A total of 402 participants were recruited through convenience sampling.

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Intellectual disability is known to be associated with a high incidence of psychiatric co-morbidity and problem behaviours. However, there are many challenges in trying to meet the mental health needs of people with an intellectual disability, and these are often not adequately addressed in Singapore's current healthcare system. This article outlines the present service provisions for this area in the country and details the importance of, as well as difficulties in the integration of health and social care measures in service development and delivery.

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