Abstract
We conducted a scoping review of the current knowledge about autism in Baltic States: Lithuania, Latvia and Estonia. The aim was to identify publications about autism and potential gaps of knowledge in this region. The search was conducted on March 31, 2016 using PubMed, PsycINFO and EMBASE databases. The search was updated on August 31, 2016; a total of 47 studies were analysed. Current research on autism in Baltic States is still in its beginning. Areas studied were education, medicine, parenting, autism in adulthood, treatments and epidemiology. Education sector is the most researched discipline about autism in Baltic countries especially addressing issue on schooling practices for autistic children. The prevalence of autism is unclear as only one outdated epidemiological study was found. Further epidemiological, clinical intervention research need to be conducted in this region.
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Little is known about the current situation of autism in Baltic States as there is a lack of substantial research in this field across all three Baltic countries (Pūras et al. 2004; Querdenker and Meirhofer 2014; Mikulėnaitė and Ulevičiūtė 2004). Therefore, to investigate autism in this region, we decided to perform scoping review.
As part of the post-Soviet communist bloc, Estonia, Latvia and Lithuania all gained independence in 1990s (Slay 2009). With independence and sovereignty, economic, political and social sectors underwent significant changes. The post-Soviet countries moved from centrally planned economiesFootnote 1 to capitalism, from autocracy to democracy and from social ‘equality’ to equity (Slay 2009). The existing view of mental health of that time was highly influenced by Moscow school of psychiatry, which concentrated on treatment with medicine and institutionalisation of patients with psychiatric disorders (Lesinskienė et al. 2008). Government did not recognise mental health problems and did not seek to integrate vulnerable people into society (Pūras et al. 2004). Moreover, treatment relied on a biological approach, with few non-pharmacological therapies offered. In addition, there was no family care or support provided by the government (Lesinskienė et al. 2008; Pūras et al. 2004).
Since the 1990s when the three Baltic countries gained independence, there appears to have been little change in the management of autism (Pūras et al. 2004; Querdenker and Meirhofer 2014). This may be caused by lack of awareness and comprehension of the condition, which is supported by the absence of integration of people with autism into regular schools. Although most health care professionals recognise autism and the diagnosis is made, few intervention programs have been introduced. Applied Behavioural Analysis (ABA) and Treatment and Education of Autistic and Communication-related handicapped Children (TEACCH) are the main intervention programs introduced for the parents, but the access is limited due to costs of services and lack of expertise in their administration in the Baltic countries (Krasauskaitė 2010; Querdenker and Meirhofer 2014). According to Mansell and Morris (2004) ‘ABA is a process of modifying behaviour using antecedent stimuli and consequences’. Virues-Ortega et al. (2013) defined TEACCH as ‘an intervention program designed to assess and enhance individual’s abilities and skills’. Both programs are designed to help people with autism spectrum disorder.
The current scoping review was conducted with the aims to
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i)
Describe the scope (i.e. amount, focus and nature) of research on autism across Baltic countries;
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ii)
Summarise and disseminate main findings, settings and methodology across Baltic countries;
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iii)
To identify the research gaps in the autism research across Baltic States.
Methods
The goal was to identify, retrieve and summarise the existing knowledge on autism in Baltic countries. The scoping review was chosen as main method for analysis because it is broader and more inclusive and it provides summaries of research findings more than the methods used to obtain them. The main phases of this scoping review were:
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Searching for relevant studies;
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Selecting studies based on pre-defined inclusion criteria;
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Extracting data;
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Collecting, summarising and reporting the results.
Data Sources and Search Strategy
The initial search was implemented on March 31, 2016, in three electronic databases PubMed (Medical Sciences, 1964–March 31, 2016), PsychINFO (Behavioural And Social Sciences 1966–March 31, 2016) and EBSCO (Multidisciplinary, 1900–March 31, 2016). Update search was conducted on August 31, 2016, when additional 17 studies were included.
These databases were chosen for a broad range and more inclusive studies across different disciplines. The search engine consists of the key terms: autism spectrum disorder and the countries name. Total of 67 articles in all the databases were found. After duplicates were deleted and the articles abstracts were read based on relevance of the study, only 10 articles remained. This small number of articles about autism in Baltic States in the databases suggests a low level of research on autism in the Baltic countries. Most of the studies are published under state universities that the researcher is affiliated with; therefore, articles are held in the university electronic catalogue. In addition, majority of research in Eastern Europe is published in the language of the country it was performed and rarely translated into English language for international publication. The current study used Lithuanian, Latvian and Estonian national libraries and open access databases as also the databases of all universities in each country (Table 1).
The review was based on these search words: country, diagnosis and language. Article included patients with autism or people in close contact with patients like parents, teachers and siblings (Table 2). Studies were excluded if after reading the full text the study did not consist of any above-mentioned constructs. Lastly, if the study was found in couple of databases, only one paper was maintained.
The Study Screening Process
A two-stage process was used to scan the databases mentioned above. Firstly, title and abstracts of studies were reviewed to identify relevant studies ascending with searched constructs. The remaining articles were carefully read and full text analysis was performed. If the full text of the article was not available online, the author or university library was contacted for personal copy. If a copy was not obtained after that, article was excluded from the review. The remaining articles were reported in the results section of this scoping review (Fig. 1).
Inter-Rater Reliability of Reviewers
All papers were reviewed by two reviewers: A. Prasauskiene and R. Buivydaite, but kappa score was not extracted because of complexity of the data presented in the papers.
Procedure of Text Analysis
Each paper was read and the main findings of the paper were put in the Excel spreadsheet; then, the papers were grouped according to their topic. After thorough analysis of the grouped papers, the main findings emerged and were reported in the “Discussion” section.
Results
The results revealed that most of the research on autism started after 2005, as only three studies were found on autism by that time. Most of the studies, N = 27 were found in Lithuanian databases, N = 9 studies in Estonian and N = 11 studies in Latvian. Of the 15 unobtainable studies, 14 were from Latvia and one from Estonia. Majority of which consisted of Bachelor (N = 6) or Master (N = 8) thesis and N = 1 journal article. The types of publications were 45% of journal articles mainly published in local journals of medicine, health and education; remaining 55% were thesis (Bachelor, Masters, Doctoral) submitted in final years of studies. Research methods used in the studies were mainly cross-sectional (46%) comparing autism parents with parents of typically developing children or comparing children with autism with other children (typically developing or with developmental disorder); only few studies address questions of treatment and intervention for autism. Half of studies (51%) used parents of children with autism or professionals as their primary participants and only one third of the participants in the studies were children. Only one study used autistic adults as research participants (Table 3).
Discussion
Autism is a relatively new diagnosis in the practice of psychiatry and medicine across all three Baltic countries. It was introduced only in the early 1990, after the Soviet Union collapsed (Pūras et al. 2004). This scoping review revealed that research on autism is limited. Areas studied in the Baltic States were education, medicine, parenting, autism in adulthood, treatments and epidemiology; however, quality of research in these areas were poor (Table 4).
Epidemiology
This review revealed that the epidemiology of the autism in this region is still not clear as only one study attempted to estimate the prevalence across three Baltic States. It was conducted in 1999 in Lithuania. During this study, 6018 school children in 14 randomly selected secondary schools and 252 classes in Vilnius District (Lesinskienė 2000). Out of 133 children found with diagnosis, 36 cases of Asperger’s, 38 cases of moderate autism and 59 cases of severe autism. Research was conducted 17 years ago and requires updated results with wider Lithuanian population (Lesinskiene 2000).
No epidemiological studies were found in Latvia or Estonia. Therefore, the question of amount of help needed for families remains unaddressed (Querdenker and Meirhofer 2014).
Autism and Education
Different measurements were used to assess children with autism. There were questionnaires designed by the researchers to measure individual accomplishments and social behaviours of autistic children in school setting. Also, prior validation or psychometric properties of the designed questionnaires were not presented (Astrauskienė 2008; Priede 2009; Terje 2013). Whilst Psycho-Educational Profile (PEP) and Paediatric Evaluation of Disability Inventory (PEDI) tests were used to evaluate child’s language and to assess independence skills, however, these tools were not validated in these populations (there were less studies assessing child’s behaviour or well-being) (Kobolt 2010; Karen 2015; Tamošūnienė et al. 2012).
The characteristics of autism were studied in parallel with schooling experiences especially with the importance of school integration compared with special schools. The questionnaires were used to evaluate the child’s abilities when using group work (Priede 2009), individual programs (Terje 2013; Adomaitienė and Jurevičiūtė 2014), mathematical lessons (Elis 2015) and socialisation programs (Lelde 2016). Review revealed that children learn social norms more effectively in regular schools than special schools (Astrauskienė 2008; Ivonytė et al. 2009; Priede 2009; Karen 2015; Žaromskytė 2012; Baškienė 2015; Lelde 2016). Other studies claimed that adapted or special programs are less stressing for the child and more productive in process (Dekšeniece 2012; Medvedeva 2012; Pociūtė 2012; Tamošūnienė et al. 2012; Terje 2013; Adomaitienė and Jurevičiūtė 2014; Sarmite 2014; Vilkelienė and Kondrotienė 2015). Other developmental problems of children with autism were not studied in the Baltic countries. There is still a need for more elaborate studies on understanding the relevant educational practices for autistic children in schools and teacher’s experiences working with these children.
Medical Research
There were two genetic studies that concentrated on possible genetic causes of autism (Pentjuss et al. 2013; Bauze et al. 2014). And two studies concentrated on biological differences in autistic children (Kevere et al. 2009; Bauze et al. 2013a). One study compared frequency of hyperhomocysteinemia between schizophrenia and autism patients with results revealing that hyperhomocysteinemia is more common in autism than schizophrenia (Bauze et al. 2014). According to Guo et al. (2009), hyperhomocysteinemia is a congenital condition with an abnormally high level of homocysteine in the blood. The homocysteine is responsible for the vitamin B6, B9 and B12 production in the body (Miller et al. 1994). Other study concentrated on anthropometric parameters and found that patients with autism were taller in height compared to typically developing (Bauze et al. 2013a). Four studies underlined lack of studies in biomarkers of autism across Baltic countries.
The review also highlighted interest in research on diets and digestion for autistic children in Baltic States. The study by Lesinskienė (2002) showed that children with autism suffer from digestion problems compared to typically developing, which was highly correlated with poor sleep. Moreover, studies by Loonum and Veldemann (2013) as also by Oie (2014) informed that diet interventions like glutamine or casein free are common practices amongst parents of children with autism. Above findings showed that dietary treatments is used to influence on child’s development and behaviour, which is a common finding in Western research (Emond et al. 2010; Whiteley et al. 2010).
The review found limited studies on experience of medical services for children with autism. The studies revealed lack of knowledge about autism amongst doctors in the emergency rooms (Lesinskienė et al. 2002b) and general practitioners (Pociūtė 2012). In addition, it highlighted the need to provide adapted medical services and home visits for families with autistic children (Lesinskienė et al. 2002a). These above-mentioned studies revealed that medical personnel in Baltic countries require more teaching on autism and its characteristics as also attention to alternative ways of delivering treatment for these children.
Parenting
We found that there is interest in research on parent’s mental health based on levels of stress, depression and anxiety. Results highlighted that parents of children with autism experienced statistically higher levels of stress, depression and anxiety compared with control groups (Matonytė 2005; Mickevičienė et al. 2009; Demčenko 2010; Stina 2013; Marii-Heleen 2014). In cross-sectional studies that compared parents of children with autism with parents of typically developing children, stress or depression were more common in those with autistic children and this correlated with child’s behavioural difficulties. These findings are supported by previous research findings (Sharpley et al. 1997; Hamlyn-Wright et al. 2007).
Another area highlighted in review findings was parenting qualities and skills whilst raising child with autism (Ivoškuvienė and Urbutytė 2008; Ustilaitė and Cvetkova 2011a, b; Žaromskytė 2012; Pociūtė 2012; Serapinaitė 2014; Jurkštas and Pūkelis 2014; Ustilaitė et al. 2015). Study by Ivoškuvienė and Urbutytė (2008) stated that mothers use positive affirmation, whilst fathers use punishment and criticism in parenting their child. Research by Lesinskienė (2002) evaluated grandparent’s perception of their autistic grandchild and revealed that grandmothers are more positive towards their grandchild than grandfathers. In addition, researches showed that parent’s experience difficulty in raising child with autism and require higher levels of support from society (Ustilaitė and Cvetkova 2011a, b; Žaromskytė 2012; Serapinaitė 2014; Jurkštas and Pūkelis 2014) and professionals (Pociūtė 2012; Ustilaitė et al. 2015; Baškienė 2015). Despite difficulties in parenting child with autism, there were two studies that concentrated on positive aspects of raising children with autism (Ustilaitė and Cvetkova 2011a, b; Labanauskaitė et al. 2014).
These findings require further research on possible external factors of stress, depression or anxiety amongst parents of autistic children as causation is yet to be determined. There is lack of studies on coping or protective mechanisms that could be useful in addressing high levels of stress, anxiety or depression in parents of autistic children.
Autistic Adults
There was only one study of adults with autism (Zvingule 2015), which attempted to define mental health and resilience factors in autistic adult’s population. Results indicated that unemployed autistic adults were more anxious and depressed compared to unemployed healthy controls. Also, autistic adults had lower levels of resilience compared with controls. This, scoping review showed that there is a large gap of research about education, work, relationships, personal development or support for autistic adults.
Treatments and Interventions
We found studies on various alternative therapies and interventions used across three countries such as art (drawing) (Lesinskienė 2002), homoeopathic medicine (Vaičekauskaitė et al. 2014), body imitation (Medvedeva 2012), qigong massage (Vaičekauskaitė and Acienė 2013), dolphin therapy (Kreivinienė and Vaičekauskaitė 2014), occupational health (Elis 2015) and music therapy (Ustilaitė et al. 2015). Results of most therapies showed a statistical significant change in child’s behaviour, physical health, self-independence and social skills. It is important to state that homoeopathic medicine was mainly researched for the ‘cure’ of autism symptoms. This could be explained by the perception of the society that still counts autism as illness that could be ‘cured’, and alternative medicine is seen as more acceptable than traditional medicine (Mikulėnaitė and Ulevičiūtė 2004).
Interventions used in these Baltic countries were TEACCH (Tupits 2012), pictograms (Dekšeniece 2012) and physiotherapy (Ivonytė et al. 2009; Stina 2013). Study results showed that there was no significant difference between intervention group and control in reading and dictating when using TEACCH. Whilst study that used pictograms found improvement in communication of children with autism, physiotherapy resulted in advanced self-independence skills amongst autistic children. Findings about the TEACCH program in the review do not support wider findings on this intervention, which are significant improvement in autistic child’s communication and social behaviours (Panerai et al. 2002; Virues-Ortega et al. 2013). It is important to highlight that there is no data on usage of medical treatments that are available in Baltic States.
Strengthens and Limitations
This scoping review is a first analysis of the situation of autism in Baltic countries. This paper revealed the deficiencies in the research areas and lack of services around autism in Lithuania, Latvia and Estonia. The limitations of this review are the limited access to the papers that are published and the language barrier as some papers were published in the language that authors do not speak: Estonian and Latvian.
Implications
Review revealed that autism is severely under-researched area in Baltic region. In addition, the epidemiology of the disorder is unknown for Latvia and Estonia. The social aspects of autism, education experience and parenting, are the most intensively researched areas across three countries, whilst medical aspects, treatments, interventions, and services, are severely behind of current research in the world. For the future research, it is important to consider studying lives of adults with autism across Baltic States and also to engage in research on genetic and biological markers of autism and promote randomised control trials on available medical treatments. Finally, the researchers should aim to assess existing interventions and treatment plans in more integrated and universal manner.
Notes
“An economic system in which economic decisions are made by the state or government rather than by interaction between consumers and businesses” (Slay 2009).
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Funding
The study was not funded by any grants. This paper is part of doctoral dissertation about parental experiences in raising child with autism spectrum in Lithuania and UK, which is funded by the University of Oxford, Department of Psychiatry.
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Buivydaite, R., Newton, C.R. & Prasauskiene, A. Scoping Review: Autism Research in Baltic States—What Is Known and What Is Still To Be Studied. Rev J Autism Dev Disord 4, 294–306 (2017). https://doi.org/10.1007/s40489-017-0114-4
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DOI: https://doi.org/10.1007/s40489-017-0114-4