Investigating the prevalence and risk factors of picky eating in a birth cohort study.

This study aimed to investigate the prevalence of childhood picky eating (PE) and to identify risk factors associated with different PE trajectories using data from the Growing up in Scotland research survey. PE was operationalised using three items across three study sweeps, at ages 2, 5 and 10 years respectively. We found 13.5 % of children with PE at age 2, 22.2 % at age 5, and 6.4 % at age 10. From these, we defined three PE categories: transient PE in early childhood (23.3 %), persistent PE into late childhood (3.7 %) and PE absent (73.0 %). Using multinomial logistic regression, we investigated associations between child and family characteristics and transient and persistent PE, adjusting for potential confounders. Various factors were associated with increased risk of persistent pickiness, including mothers who smoked during pregnancy and children whose mothers reported feeding challenges at 9-12 months. These findings support the view that PE behaviours are common and tend to remit by adolescence although a small number of children are at risk of experiencing longer term problems. Families of children who are exposed to such risks may benefit from preventative interventions.

Avoidant/restrictive food intake disorder and severe food selectivity in children and young people with autism: A scoping review.

AIM: To assess the extent of the scientific literature on avoidant/restrictive food intake disorder (ARFID) in children and young people with autism in order to evaluate and synthesize the evidence on (a) the nature of feeding and eating difficulties in children and young people with autism; (b) the consequences of a severely restricted diet; and (c) what is known about effective treatment approaches. METHOD: PubMed and PsycInfo databases were searched, identifying 56 studies and a narrative synthesis was effected. RESULTS: The literature suggested that ARFID-like presentations are common in children and young people with autism, with severe consequences for physical and mental health. The three drivers mentioned in the DSM-5 criteria, namely a sensory-based avoidance, fear- or phobia-based restriction, and a lack of interest in eating, are present in this population, although sensory sensitivities are currently the most commonly described. Research suggests that ARFID symptoms in children and young people with autism can be amenable to treatment, with evidence that behavioural interventions are feasible and potentially effective in this population. INTERPRETATION: ARFID is a common and impactful problem among young people with autism but is currently under researched. Work is required to (a) identify the prevalence of ARFID in children and young people with autism; (b) uncover the key drivers of ARFID in this population; (c) adapt currently available interventions for use with children and young people with autism; and (d) rigorously test these interventions in clinical trials. WHAT THIS PAPER ADDS: Significant food restriction is common in children and young people with autism. Sensory sensitivities are frequently cited as a reason for food restriction. The prevalence and causes of avoidant/restrictive food disorders in children and young people with autism need further research.

The impact of early stages of COVID-19 on the mental health of autistic adults in the United Kingdom: A longitudinal mixed-methods study.

LAY ABSTRACT: During the COVID-19 pandemic, high levels of depression, anxiety and stress have been reported in the general population. However, much less has been reported about the impact of COVID-19 on the mental health of autistic people. What we did: In the present study, we investigated how the mental health of autistic adults in the United Kingdom changed during the early stages of the COVID-19 pandemic. In total, 133 participants completed an online survey at two different time points. Of the 133 participants, 70 completed the survey at the first time point just before the onset of the national lockdown. This allowed us to look at changes in their mental health, from before the lockdown to 10 to 15 weeks during lockdown. All participants (133) told us about their experiences of the pandemic. What we found: While many autistic adults told us that their mental health worsened, people's experience varied. For some autistic adults, aspects of mental health (e.g. anxiety, stress) actually improved. Participants also described social changes that had occurred, at home and in the outside world. They described feelings of uncertainty during the pandemic, and discussed how the pandemic had affected some of their previous coping strategies. Participants also told us about their difficulties in accessing healthcare services and food during the early stages of the pandemic. In our article, we discuss these findings and focus on what needs to change to ensure that autistic people are better supported as the pandemic continues.

Self-reported camouflaging behaviours used by autistic adults during everyday social interactions.

LAY ABSTRACT: Camouflaging can be thought of as the process through which autistic people modify their natural social behaviours to adapt to, cope within or influence the largely neurotypical (non-autistic) social world. Many autistic people experience negative reactions to their natural or intuitive social behaviours when interacting with non-autistic people. Over time, in response to these negative reactions, autistic people's social behaviour often changes. We refer to autistic people's changed behaviours as 'camouflaging behaviours'. Research exploring camouflaging behaviours is still at an early stage. This study investigated camouflaging behaviours used by autistic adults in everyday social interactions using a research method that was new to the field of autism. Specifically, 17 autistic adults were filmed taking part in a common everyday social situation - a conversation with a stranger. With the help of the video of this conversation, they then showed and described their camouflaging behaviours to a researcher. These autistic people identified and described a total of 38 different camouflaging behaviours. The detailed and specific information provided by autistic adults about camouflaging behaviours generated important new insights into the ways in which autistic people adapt to, cope within and influence the neurotypical (non-autistic) social world.

Camouflaging in an everyday social context: An interpersonal recall study.

LAY ABSTRACT: Many autistic people report that, despite personal costs, they use strategies to hide their autistic characteristics or appear non-autistic at work, school or university, when speaking with health professionals, or while socialising with certain friends and family members. These strategies are often referred to as camouflaging. This study explores camouflaging during everyday social interactions. A total of 17 autistic adults were filmed taking part in a common everyday social situation - a conversation with a stranger. They then watched the video of this conversation with a researcher and answered questions about camouflaging. These autistic people told us that they (1) had a strong desire to socialise with and be valued by other people but, because of negative past experiences, they often felt unsure about their ability to do so; (2) used camouflaging to help them to socialise and be valued by others; (3) experienced negative consequences when camouflaging (e.g. fatigue, anxiety and difficulties in friendships); and (4) sometimes socialised in more autistic ways instead of camouflaging. This study shows us how autistic people often change their behaviour because of the way they are treated by nonautistic people and that autistic people may benefit from programmes that help them to socialise in more authentically autistic ways, but only if their autistic social behaviour is met with understanding and acceptance from non-autistic people.

Avoidant/restrictive food intake disorder: A systematic scoping review of the current literature.

Avoidant/restrictive food intake disorder (ARFID) was recently introduced to psychiatric nosology to describe a group of patients who have avoidant or restrictive eating behaviours that are not motivated by a body image disturbance or a desire to be thinner. This scoping review aimed to systematically assess the extent and nature of the ARFID literature, to identify gaps in current understanding, and to make recommendations for further study. Following an extensive database search, 291 unique references were identified. When matched against pre-determined eligibility criteria, 78 full-text publications from 14 countries were found to report primary, empirical data relating to ARFID. This literature was synthesised and categorised into five subject areas according to the central area of focus: diagnosis and assessment, clinical characteristics, treatment interventions, clinical outcomes, and prevalence. The current evidence base supports ARFID as a distinct clinical entity, but there is a limited understanding in all areas. Several possible avenues for further study are indicated, with an emphasis placed on first parsing this disorder's heterogeneous presentation. A better understanding of the varied mechanisms which drive food avoidance and/or restriction will inform the development of targeted treatment interventions, refine screening tools and impact clinical outcomes.