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This study aims to examine the impact that diagnostic factors such as duration of diagnostic period, number of professionals consulted and perceived social support have on parental stress during the diagnostic process of autism spectrum disorder (ASD).

Forty parents of 2–18 year-old children/adolescents with a formal ASD diagnosis recruited from five specialized private clinics in Lisbon completed a survey which included diagnostic questionnaire, parental stress scale and social support scale from April to December 2022.

Data analysis indicated that the mean age of the diagnosis was 5.6 years with a delay of 3.95 years from first concern until final diagnosis. On average, parents consulted a mean of 3.62 professionals. Other findings indicated that as age of parents increased, levels of parental stress decreased. Parents with higher levels of social support had lower levels of parental stress. Furthermore, higher age of child at first concern predicted higher affective social support.

This study reflects on the experience of obtaining the ASD diagnosis in Portugal, raising awareness on the importance of providing early detection and social support for distressed parents.

People with Down's syndrome are at increased risk of developing early onset Alzheimer's disease. It has been recommended that all adults with Down's syndrome receive baseline neuropsychological testing for dementia. In certain areas prospective screening of people with Down's syndrome takes place to ensure the early diagnosis of the condition. However, little has been published on the value of this type of screening. The purpose of this paper is to report on a prospective screening programme and asks whether the programme is effective in identifying dementia-related changes in people with Down's syndrome and whether the current screening intervals are appropriate.

All adults with Down's syndrome in Plymouth (UK) are identified and offered a comprehensive test battery at baseline at the age of 20 and then have testing biennially from 40 to 50 and annually after 50. All individuals diagnosed with dementia between 2001 and 2013 were identified and their case notes examined. The symptoms at the time of diagnosis were identified and whether these symptoms had been identified through the screening programme or by other routes were recorded. Prevalence data and age at diagnosis were also recorded.

In total, 26 people were diagnosed with dementia during the study period. Of these, the diagnosis of dementia followed concerns being identified during the routine screening programme in 54 per cent of cases. In the younger age group (age 40-49) 63 per cent of people were identified through the screening programme. At the time of diagnosis a mean of 5.5 areas of concern were in evidence.

Limited by small sample size, however service development not original research. Implications for the use of prospective dementia screening in people with Down's syndrome.

Implications for how services choose to run their Down's syndrome and dementia screening programmes, including the frequency of screening.

The paper adds to a growing evidence base around the value of prospective dementia screening in people with Down's syndrome. It is also one of a few studies exploring the frequency of screening. Additionally, it adds further data about prevalence of dementia in people with Down's syndrome.

Research about the prevalence of dementia among older adults in the incarceration system is currently lacking, and further investigation is warranted. Considering the high level of healthcare needs, unique behavioural issues and difficulty to rehabilitate within the system due to its punitive approach and lack of effective rehabilitation programs, further investigation is warranted to characterize and determine the number of incarcerated older adults with dementia. The purpose of this study is to estimate the prevalence of individuals with dementia in the prison system while also describing the incarceration, demographic and offence-related characteristics of this unique population.

South Carolina (SC) Alzheimer’s Disease and Related Dementias Registry (1992–2016) and South Carolina Department of Corrections (SCDC) data (Fiscal years 1992–2019) were cross-referenced. The prevalence of Alzheimer’s disease and related dementias (ADRD) cases in the corrections system was calculated using South Carolina Alzheimer's Disease (SC AD) SC ADRD Registry and SCDC data. Pearson’s correlation coefficients were calculated to determine strength and direction of relationships between year of incarceration and frequency of ADRD cases both prior to and after incarcerations, respectively. Significant differences by age group, race, gender and dementia type were determined using a two-tailed pooled t-test and Bonferroni approach where appropriate. Count data for types of crimes committed are also presented.

The linkage showed that there were 2,171 individuals within the SC AD Registry who have been in the corrections system, about 1% of those in the Registry. Of these individuals, 1,930 cases were diagnosed with ADRD after incarceration and 241 prior to incarceration. In 2016, 317 individuals with ADRD were incarcerated. For ages 55 and above in South Carolina, the prevalence of ADRD is 6.7% in the general, non-incarcerated population compared to 14.4% in the incarcerated population. Additional results showed that those diagnosed with ADRD between 55 and 65 years of age had a significantly lower mean age at first incarceration (34.6 years of age) than those diagnosed between 66 and 74 years of age (55.9 years of age), indicating that those incarcerated earlier in life had an earlier dementia diagnosis. Additionally, African Americans had a significantly lower mean age at first incarceration (43.4 years of age) than Whites (46.2 years of age) and females had significantly lower mean age at first incarceration (42.9 years of age) than males (45 years of age). When investigating trends, results showed a significant positive linear association between year and frequency of ADRD diagnoses (p-value < 0.05) for those with ADRD diagnosis prior to incarceration and a significant decreasing linear association (p-value < 0.0001) in the number of individuals with an ADRD diagnosis after corrections. Findings also showed that a large percentage of older adults with ADRD in prison did not commit a violence offence.

This study links a population-based Alzheimer’s disease registry and state-wide corrections data to estimate the prevalence of individuals with dementia in the prison system. This linkage presents an opportunity to fill in significant gaps and contribute to the body of literature on dementia among people in prison in the USA.

This chapter is a comprehensive discussion of autism spectrum disorder (ASD) across the globe (e.g., United States, China, Brazil, Japan and Turkey). Topics that are discussed include the following: diagnostic criteria and approaches; international perspectives of ASD; western and eastern assessment practices; cultural considerations of assessment of ASD; educational and medical interventions; behavioral and emotional interventions; complementary and alternative medical interventions; variations in educational services among countries; early intervention practices; adult services; national and international resources; and current needs and future directions.

Professionals working with community populations are often presented with complicated cases where it is difficult to determine which diagnosis or diagnoses are appropriate. Differentiating among neurodevelopmental disorders such as autism spectrum disorder (ASD), attention-deficit/hyperactivity disorder and intellectual disability can be a complex process, especially, as these disorders have some overlapping symptoms and often co-occur in young children. This series of case studies aims to present commonly overlapping symptoms in children who present to clinics with developmental concerns.

This paper presents three case studies that were completed at a free community ASD screening clinic in Southern California.

The case studies have common presenting behaviors and symptoms (e.g. social communication difficulties) that often co-occur across diagnoses; explanations for the final diagnoses are given in each case.

Conclusions from these three cases cannot generalize to all children being seen in clinics for neurodevelopmental concerns.

This series of case studies highlights commonly overlapping symptoms in children who present for differential diagnosis with social and/or behavioral concerns. Implications for educational placement and intervention are discussed.

These cases highlight the challenges involved in the differential and dual diagnostic process for young children with developmental concerns. Diagnostic considerations can affect later educational placement and opportunities for socialization.

This series of case studies provide practical information for clinicians about how to effectively differentiate between commonly occurring neurodevelopmental disorders, particularly given recent changes to the Diagnostic and Statistical Manual, 5th edition (DSM-5).

According to current estimates, the prevalence of autism spectrum disorders (ASDs) ranges from 1 in 500 children to 1 in 150 children (Centers for Disease Control and Prevention/CDC, 2007; Desmon, 2007). In the past such disorders usually were not identified until a child was school-aged, but these disorders are now more likely to be diagnosed in affected individuals during the preschool years (McConachie, Le Couteur, & Honey, 2005; Rutter, 2006). For example, Mandell, Novak, and Zubritsky (2005) surveyed over 900 caregivers of children with ASDs and learned that on an average, children with autistic disorder were diagnosed at 3.1 years of age. These researchers also reported that children who exhibited such characteristics as severe language impairment, toe walking, hand flapping, and sustained unusual play behaviors were diagnosed earlier than children without these features.

Estimates of the prevalence of AS in children throughout the entire population of the United States are highly limited and greatly variable. Ozonoff, Dawson, and McPartland (2002) stated that estimates of AS range from 0.2 to 0.5% (or 2–5 individuals in 1,000), while Volkmar and Klin (2000) cited studies reporting rates of 36 in 1,000 to approximately 1 in 10,000. The Diagnostic and Statistical Manual of the American Psychiatric Association (2000), fourth edition (DSM-IV-TR), states that “definitive data about the prevalence of Asperger Syndrome does not exist.”

This study aims to develop a clinical prediction rule for the diagnosis of autistic spectrum disorder (ASD) in children.

This population-based study was carried out in children aged 2 to 5 years who were suspected of having ASD. Data regarding demographics, risk factors, histories taken from caregivers and clinical observation of ASD symptoms were recorded before specialists assessed patients using standardized diagnostic tools. The predictors were analyzed by multivariate logistic regression analysis and developed into a predictive model.

An ASD diagnosis was rendered in 74.8 per cent of 139 participants. The clinical prediction rule consisted of five predictors, namely, delayed speech for their age, history of rarely making eye contact or looking at faces, history of not showing off toys or favorite things, not following clinician’s eye direction and low frequency of social interaction with the clinician or the caregiver. At four or more predictors, sensitivity was 100 per cent for predicting a diagnosis of ASD, with a positive likelihood ratio of 16.62.

This practical clinical prediction rule would help general practitioners to initially diagnose ASD in routine clinical practice.

The purpose of this paper is to describe the characteristics of adult male autistic spectrum disorder (ASD) patients admitted to low secure services and to compare them with non‐ASD patients.

Case‐control study of admissions to two ASD units and one non‐ASD unit at a tertiary referral centre. Subjects were compared on demographic, personal, clinical and offending behaviour variables.

In total, 51 ASD and 43 controls were studied. Median age at diagnosis of ASD was 21 years (range 6‐56). The ASD group were younger (median age 27 vs 33 years) and more likely to be single than controls. Their age at first contact with psychiatric services was lower and proportionally more were admitted from prison and courts. Almost three‐quarters had psychiatric comorbidity, most commonly schizophrenia, but unlike controls, personality disorder and drug and alcohol disorders were uncommon. Lifetime sexually inappropriate behaviour and physical violence were less common, as was non‐compliance with medication. However, 78 per cent had a lifetime history of physical violence and a third had a conviction for GBH or homicide. Offending behaviour was sometimes atypical in nature and some had convictions for unusual offences such as harassment and stalking.

The age difference between cases and controls is likely to have confounded the results. Findings cannot be generalised to the NHS.

This group of ASD patients in low security differed in several important respects from their non‐ASD counterparts, which highlights their differing treatment needs, strengths and weaknesses.

This chapter explores the importance of early autism spectrum disorder (ASD) assessment and diagnosis to facilitate early treatment. This chapter will have a particular focus on ASD assessment and diagnosis within a Black and Minority Ethnic (BME) context. We propose using a Cultural Competence framework to process, analyze, assessment, and diagnosis results/findings. BME assessments/diagnoses can be delayed by up to 18 months longer when compared to Whites.

ASD Assessment aims to assess certain developmental traits in individuals to identify ASD which is a developmental disability. Autism is a spectrum condition which can manifest differently in each diagnosed individual. There are core features necessary for an ASD diagnosis to be made. These include among other traits: poor eye contact, abnormality in body language: for example, gestures, difficulties with social communication and social interaction, often they exhibit repetitive patterns of behavior, have obsessional interests, rigid thinking patterns, and have an aversion to certain sounds and textures and an unusual interest in sensory satisfaction.