Development and validation of the Screen for Early Eating Disorder Signs (SEEDS) in persons with type 1 diabetes

A scoping review exploring research investigating the influence of carbohydrate counting on eating behaviour and/or disordered eating in type 1 diabetes

AIMS

To evaluate evidence describing a potential association between carbohydrate counting (CC) in type 1 diabetes and eating behaviours and/or disordered eating behaviour (DEB).

METHODS

Systematic literature searches were conducted using MEDLINE, Embase, PsycINFO, Web of Science,Scopus, and the trial register Cochrane Central Register of Controlled Trials.

RESULTS

37 articles were eligible for review, 28 measured CC, 26 provided evidence of an association between CC and eating behaviours or participants' relationship to food, and four provided evidence of an association between CC and disordered eating. Evidence suggests that patients using CC are less likely to score highly for DEB.

CONCLUSIONS

Measures of CC practise and adherence currently do not 1) consider the possible impact of the spectrum of CC strategies used within this cohort, which are often modified and personalised over time or, 2) consider that disordered eating in type 1 diabetes patients is often characterised by binge eating, restricted eating or insulin dose manipulation with inappropriate insulin-to-food calculations or the rejection of CC. Further research considering the range of insulin-to-food strategies practised and varying methods of CC education (particularly in early childhood), would be valuable in ascertaining associations between CC adherence and DEB.

Glycemic variability and weight-focused eating behaviors among adolescents and young adults with type 1 diabetes†

OBJECTIVE

Type 1 diabetes (T1D) disease management and associated glycemic fluctuations can disrupt experiences of hunger and satiety, which may increase risk for disordered eating behaviors. Glycemic variability may be a useful trigger for just-in-time interventions for disordered eating behaviors. In this exploratory study, we hypothesized that two metrics of glycemic variability would be associated with greater hunger and predict eating behaviors for weight loss or maintenance in adolescents and young adults with T1D.

METHODS

Individuals with T1D were recruited from a university diabetes clinic (N = 34; 50% female, Mage = 19.53 years, MHbA1c = 7.98%; 29% Hispanic/Latinx; 79% White). Participants wore a blinded continuous glucose monitor for 5 days, and completed ecological momentary assessments (four prompts per day) that included measures of hunger and eating behaviors for weight loss or maintenance purposes. Generalized and linear mixed models were used to test hypotheses.

RESULTS

Approximately 30% of participants were at risk for an eating disorder based on Diabetes Eating Problem Survey-Revised scores. Greater glycemic variability did not predict hunger, but was associated with increased odds of endorsing any eating behavior for weight loss or maintenance purposes within-person (ps<.05). Greater hunger was associated with increased odds of endorsing disordered eating behavior within-person (p<.05).

CONCLUSIONS

This exploratory study provides some preliminary evidence that times of greater hunger and glycemic variability may be when individuals with T1D may be at higher risk of engaging in behaviors to lose or maintain weight.

Health Professionals' Experiences Supporting People With Type 1 Diabetes Mellitus Who Deliberately Restrict and/or Omit Insulin for Weight, Shape, and/or Appearance: A Meta-synthesis

OBJECTIVES

It has been reported that health professionals currently lack the required empathy, understanding, and knowledge about the deliberate restriction and/or omission of insulin to influence weight and/or shape, which may impact the quality of care provided. We sought to synthesize existing qualitative research pertaining to health professionals' experiences supporting individuals within this unique population.

METHODS

We conducted a meta-synthesis using a meta-aggregative approach. We searched 5 electronic databases. Eligible articles were qualitative or mixed-methods empirical studies with primary data reporting health professionals' experiences supporting people with type 1 diabetes restricting and/or omitting insulin for weight and/or shape control, written in English, from database inception to March 2022.

RESULTS

A final sample of 4 primary studies were included. The analysis indicated that in the absence of standardized screening and diagnostic tools, health professionals found it challenging to decide when behaviour became clinically significant. Health professionals were also challenged by complex perceptions and behaviours relating to their illness management and features of broader health-care systems and organizational factors.

CONCLUSIONS

Our findings have widespread multidisciplinary implications for health professionals and the broader health-care systems in which they work. We provide evidence-based clinical recommendations and suggestions for vital future research.

Internet-delivered eating disorders prevention program for adolescent girls with type 1 diabetes: Acceptable and feasible

BACKGROUND

Adolescents with type 1 diabetes are at significantly increased risk for eating disorders and few interventions exist.

OBJECTIVE

This study examined the feasibility, acceptability, and preliminary effects of an internet-based eating disorders prevention program adapted specifically for adolescent girls with type 1 diabetes.

PARTICIPANTS AND METHODS

Thirty-five girls (16.2 ± 1.1 years) participated Body Project (T1D Style), a 4-week program consisting of four adolescent sessions focused on promoting illness acceptance, challenging sociocultural body image pressures, increasing social support, and teaching assertive communication. Caregivers participated in one session focused on fostering body image positivity and a healthy relationship with food. Pre-intervention, post-intervention, and 3-month follow-up surveys assessed disordered eating, body dissatisfaction, thin-ideal internalization, diabetes acceptance, diabetes distress, and quality of life. Cohen's d effect sizes were calculated at post-intervention and follow-up. Program acceptability was assessed at post-intervention. Manual fidelity and homework completion were monitored.

RESULTS

High manual fidelity, retention, and homework completion were achieved. Quantitative and qualitative feedback from teens and caregivers suggested high acceptability. Large effects (d = 1.35-0.83) were observed for dieting, body dissatisfaction, diabetes distress, diabetes acceptance, and diabetes-related quality of life at post-intervention, with large-medium effects (d = 1.16-0.58) at follow-up. Medium-small effects (d = 0.49-0.78) at post-intervention were observed for diabetes-specific disordered eating and thin-ideal internalization, with effects maintained at follow-up.

CONCLUSIONS

Results support the acceptability and feasibility of this targeted eating disorders prevention program for adolescent girls with type 1 diabetes. Future clinical trials are warranted to determine its effectiveness compared to a control condition.

Insulin Restriction or Omission in Type 1 Diabetes Mellitus: A Meta-synthesis of Individuals' Experiences of Diabulimia

OBJECTIVE

Unique to individuals with insulin-dependent diabetes mellitus (IDDM) is a disordered eating behaviour whereby insulin is deliberately restricted or omitted. Despite growing research in this area, experiential perspectives of individuals remain understudied. Therefore, the purpose of this meta-synthesis was to explore the experiences of individuals with Type 1 Diabetes Mellitus (T1DM) by identifying, analysing and synthesising existing knowledge concerning their misuse of insulin for weight control.

DESIGN

Meta-aggregative techniques were employed to generate synthesised findings related to individuals' understanding and experience, physical and psychological impacts, support and treatment-related needs and experiences, noted in twelve studies.

RESULTS

A multifaceted relationship with the unique disordered eating behaviour, beyond weight control was identified. Many individuals experienced a wide range of diabetes-related complications from insulin restriction and omission alongside increased distress, loss of control and feelings of regret, guilt, and shame later in life. Almost all individuals valued peer support from those who shared a 'diabulimic' identity; peer support appeared more conducive to recovery than support from friends, family and formal support services, which were not uniformly supportive.

CONCLUSIONS

This meta-synthesis revealed valuable information from individuals with diabulimia which has widespread interdisciplinary implications and may provide useful guidance concerning the prevention and treatment of this unique behaviour. The results highlight the need for empathic, collaborative care, and proactive prevention and early intervention. Furthermore, the findings highlight the value of peer support in recovery, the need for increased knowledge among family and friends, training among multidisciplinary teams and support services, and crucially the development of evidence-based treatments informed by the behaviour as a unique distinct construct.

Prevention and early help for eating disorders in young people with type 1 diabetes

There is building evidence that early intervention is key to improving outcomes in eating disorders, whereas a 'watch and wait' approach that has been commonplace among GPs and other healthcare professionals is now strongly discouraged. Eating disorders occur at approximately twice the rate in individuals with type 1 diabetes compared to the general population. In this group, standard eating disorder treatments have poorer outcomes, and eating disorders result in a particularly high burden of morbidity. Therefore, our first priority must be prevention, with early intervention where disordered eating has already developed. Clinicians working in both eating disorders and diabetes specialist services have highlighted the need for multidisciplinary team collaboration and specific training, as well as improved treatments. We review the current evidence and future directions for prevention, identification and early intervention for eating disorders in children and young people with type 1 diabetes.

Reconsidering a role for attachment in eating disorder management in the context of paediatric diabetes

We suggest a reconsideration of the role of 'attachment orientation' in the context of eating disorders and paediatric diabetes. Attachment orientation is a psychological construct that describes a relatively stable set of expectations and behaviours an individual relies upon in managing relationships. There is considerable evidence of an association between attachment orientation and the development and maintenance of disordered eating in individuals without diabetes, though evidence is more scant in populations with diabetes. We discuss the underpinning theory and critically examine the existing literature for the relationship between attachment orientation and disordered eating in paediatric diabetes. Finally, we draw on adjacent literatures to highlight potential future directions for research should this area be revisited. Overall, we contextualise our discussion in terms of patient-centred, holistic care that addresses the mind and body (i.e., our discussion of attachment orientation assumes a psycho-biological approach).

Screening and identification of disordered eating in people with type 1 diabetes: A systematic review

People with Type 1 diabetes (T1D) have been shown to be an at-risk group for the development of disordered eating behaviours, however, the validity of tools used to assess disordered eating behaviours in T1D is unclear. This review aimed to identify tools used to screen or identify disordered eating behaviours and eating disorders in people with T1D, and evaluate the validity and reliability of these tools. A systematic search strategy was conducted to October 2019 according to the PRISMA guidelines. The search strategy retrieved 2714 articles, with 100 articles describing 90 studies included in the review. Studies were predominantly conducted in adolescent females in clinical settings. Forty-eight individual tools were used across retrieved studies. Overall, the quality of tools reported in included articles was poor, with high risk of bias due to the use of non-validated tools (n = 44 articles) and few studies comparing to the reference standard (n = 10 articles) of a diagnostic interview. This review shows that a variety of tools have been used to screen and identify disordered eating behaviours and eating disorders in people with T1D. Future research including comparison to a gold standard diagnostic interview is warranted to further evaluate the validity and reliability of available tools.

25 Years of psychological research investigating disordered eating in people with diabetes: what have we learnt?

Disordered eating is a serious and under-recognized problem in people with diabetes. This narrative review summarizes the research contributions made by psychological science over the past 25 years to the study of disordered eating in people with type 1 or type 2 diabetes, and identifies gaps and future directions relevant to both healthcare professionals and researchers. Key focus areas of psychological research investigating disordered eating in people with diabetes have been: (1) defining and classifying types of disordered eating; (2) identifying demographic, diabetes-specific and psychosocial correlates of disordered eating, and developing theoretical models of disordered eating in people with type 1 diabetes; (3) identifying the physical and psychosocial consequences of disordered eating; and (4) developing screening measures to identify disordered eating in people with type 1 diabetes. Psychological science has made significant contributions over the past 25 years to our understanding of the nature of this problem and the multiple factors which may interrelate with disordered eating in people with diabetes. Key areas for further attention include: (1) a better definition of disordered eating subtypes in people with type 1 diabetes; (2) characterizing disordered eating in people with type 2 diabetes; and (3) developing multidisciplinary, evidence-based prevention and treatment interventions for comorbid disordered eating and diabetes.

An Examination of Sex Differences in a Disease-Specific Model of Disordered Eating Behaviors in Type 1 Diabetes

OBJECTIVE

Preliminary evidence supports the integration of type 1 diabetes (T1D) disease-specific factors into eating disorder risk models. The current study explored whether cross-sectional associations among constructs included in the modified dual pathway model of eating disorder risk for individuals with T1D are similar across sex among adolescents and young adults with T1D.

METHODS

Original study participants were recruited from the T1D Exchange Clinic Network, a U.S. registry of individuals with T1D. Online surveys included measures of general eating disorder risk factors, hypothesized T1D-specific risk factors, and a T1D-specific eating disorder questionnaire. The current study is a secondary analysis with the adolescents (13-17 years; n = 307; 46.9% female) and young adults (18-25 years; n = 313; 62.6% female) from the original sample. In the absence of strong measurement invariance for all measures of interest, sex-specific path models were estimated among the adolescent and young adult cohorts.

RESULTS

Only two paths emerged as significant in the female, but not male, adolescent model. In the young adult cohort, all significant paths were the same across sex.

CONCLUSIONS

Both general and T1D-specific risk factors are associated with disordered eating behaviors in the T1D population. Patterns of associations were similar across male and female youth with T1D, suggesting that sex-specific prevention approaches to disordered eating behaviors among T1D youth may not be warranted.

Test of the modified dual pathway model of eating disorders in individuals with type 1 diabetes

OBJECTIVE

Adolescents and young adults with type 1 diabetes (T1D) demonstrate high rates of disordered eating behaviors (DEBs) and may experience physiological and psychological vulnerabilities not currently included in established risk models of DEBs. This study examined associations among constructs included in the recently proposed T1D-specific modified dual pathway model and examined age as a moderator of these associations.

METHOD

Participants included adolescents (n = 307; age M = 15.71, SD = 1.33), young adults (n = 313; age M = 21.20, SD = 2.10), and adults (n = 198; age M = 30.51, SD = 2.81) recruited via the T1D Exchange Clinic Registry. Data were collected from participants' medical records and from self-report questionnaires assessing dietary regimen, dietary restraint, body dissatisfaction, hunger/satiety, diabetes-specific negative affect, and DEBs. Multiple group path modeling was used to test hypotheses.

RESULTS

Approximately 31% of participants were at risk for an eating disorder. The original modified dual pathway model had poor model fit. The addition of three empirically defensible paths improved model fit. Diabetes-specific dietary regimen, diabetes-specific negative affect, and hunger/satiety disruption all were associated with DEBs. A fully varying multiple group model by age fit best; however, only the dietary restraint to DEBs pathway demonstrated a distinct pattern across age cohort, which attenuated from the adolescent to the adult cohort.

DISCUSSION

This study provides preliminary support for associations proposed in the modified dual pathway model and suggests potential for intervening on disease-specific risk factors of DEBs in a T1D population.