Exploration of suitable behaviour change techniques for lifestyle change in individuals with mild intellectual disabilities: A Delphi study

Lifestyle modification interventions for adults with intellectual disabilities: systematic review and meta-analysis at intervention and component levels

BACKGROUND

Adults with intellectual disabilities (IDs) are susceptible to multiple health risk behaviours such as alcohol consumption, smoking, low physical activity, sedentary behaviour and poor diet. Lifestyle modification interventions can prevent or reduce negative health consequences caused by these behaviours. We aim to determine the effectiveness of lifestyle modification interventions and their components in targeting health risk behaviours in adults with IDs.

METHODS

A systematic review and meta-analysis were conducted. Electronic databases, clinical trial registries, grey literature and citations of systematic reviews and included studies were searched in January 2021 (updated February 2022). Randomised controlled trials and non-randomised controlled trials targeting alcohol consumption, smoking, low physical activity, sedentary behaviours and poor diet in adults (aged ≥ 18 years) with ID were included. Meta-analysis was conducted at the intervention level (pairwise and network meta-analysis) and the component-level (component network meta-analysis). Studies were coded using Michie's 19-item theory coding scheme and 94-item behaviour change taxonomies. Risk of bias was assessed using the Cochrane Risk of Bias (ROB) Version 2 and Risk of Bias in Non-randomised Studies of Interventions (ROBINS-I). The study involved a patient and public involvement (PPI) group, including people with lived experience, who contributed extensively by shaping the methodology, providing valuable insights in interpreting results and organising of dissemination events.

RESULTS

Our literature search identified 12 180 articles, of which 80 studies with 4805 participants were included in the review. The complexity of lifestyle modification intervention was dismantled by identifying six core components that influenced outcomes. Interventions targeting single or multiple health risk behaviours could have a single or combination of multiple core-components. Interventions (2 RCTS; 4 non-RCTs; 228 participants) targeting alcohol consumption and smoking behaviour were effective but based on limited evidence. Similarly, interventions targeting low physical activity only (16 RCTs; 17 non-RCTs; 1413 participants) or multiple behaviours (low physical activity only, sedentary behaviours and poor diet) (17 RCTs; 24 non-RCTs; 3164 participants) yielded mixed effectiveness in outcomes. Most interventions targeting low physical activity only or multiple behaviours generated positive effects on various outcomes while some interventions led to no change or worsened outcomes, which could be attributed to the presence of a single core-component or a combination of similar core components in interventions. The intervention-level meta-analysis for weight management outcomes showed that none of the interventions were associated with a statistically significant change in outcomes when compared with treatment-as-usual and each other. Interventions with core-components combination of energy deficit diet, aerobic exercise and behaviour change techniques showed the highest weight loss [mean difference (MD) = -3.61, 95% credible interval (CrI) -9.68 to 1.95] and those with core-components combination dietary advice and aerobic exercise showed a weight gain (MD 0.94, 95% CrI -3.93 to 4.91). Similar findings were found with the component network meta-analysis for which additional components were identified. Most studies had a high and moderate risk of bias. Various theories and behaviour change techniques were used in intervention development and adaptation.

CONCLUSION

Our systematic review is the first to comprehensively explore lifestyle modification interventions targeting a range of single and multiple health risk behaviours in adults with ID, co-produced with people with lived experience. It has practical implications for future research as it highlights the importance of mixed-methods research in understanding lifestyle modification interventions and the need for population-specific improvements in the field (e.g., tailored interventions, development of evaluation instruments or tools, use of rigorous research methodologies and comprehensive reporting frameworks). Wide dissemination of related knowledge and the involvement of PPI groups, including people with lived experience, will help future researchers design interventions that consider the unique needs, desires and abilities of people with ID.

Transition to adulthood of adolescents with profound intellectual and multiple disabilities: Content validation of the SGU-PIMD to support families

BACKGROUND

For families with adolescent children, the transition to adulthood is usually challenging. This period may be extra demanding for families with a child with profound intellectual and multiple disabilities due to the child's strong and persistent support needs. To support these families during this phase and to facilitate the transition process of these adolescents, we adapted the Canadian skills for growing up (SGU) into the skills for growing up-profound intellectual and multiple disabilities (SGU-PIMD). The aim of this study is to determine its content validity.

METHOD

A Delphi study with family members and healthcare professionals was conducted.

RESULTS

Results showed good content validity. However, the Delphi panel suggested minor adjustments to improve relevance, comprehensibility and comprehensiveness.

CONCLUSIONS

The current SGU-PIMD can be used in practice for supporting adolescents with profound intellectual and multiple disabilities. However, there are also recommendations for research into the feasibility and acceptability of the instrument.

Weight reduction and dietary improvements in a cluster-randomised controlled trial for adults with intellectual disabilities

Background

People with intellectual disabilities (IDs) have an increased risk of obesity and health concerns related to their nutritional status and dietary intake.

Objective

To assess the effectiveness of a multi-component intervention on weight, waist circumference (WC), clinical health parameters and dietary habits in a group of overweight and obese adults with mild-to-moderate ID.

Design

A 7-month cluster-randomised trial and a 7-month follow-up of the intervention group after the end of intervention when the group received usual care. The intervention consisted of monthly dietary-group courses tailored to the participants' cognitive abilities and practical skills, monthly nutritional courses for staff, use of behaviour change techniques and nudging. The control group received usual care during the intervention.

Results

There were 32 participants aged 22-61 years: 15 in the intervention group and 17 in the control group. After 7 months, a non-significant weight difference (median difference = -1.25 kg; 95% confidence interval [CI] = -2.00; 0.95 vs. +1.00 kg; CI = -1.15; 3.00, P = 0.08) and a significant WC difference were observed between the intervention and control groups (median difference = -3.75 cm; CI: -7.68; 0.11 vs. 0 cm; CI = -3.99; 1.00, P = 0.03), respectively. The median reduction in WC continued in the intervention group during the 7-month follow-up (median difference = -7.50 cm; CI: -13.57; -3.16, P = 0.002). A significant difference in frequency intake of fruit (P = 0.03) and berries (P = 0.004) was observed between the groups after 7 months, supported by a significant increase in measured serum-carotenoid levels in the intervention group after 7 months (median difference = 0.26 mmol/L; CI: -0.12; 0.52, P = 0.007).

Conclusions

A significant difference in WC was observed between the groups, accompanied by changes in blood parameters and dietary habits.

Towards criteria and symptoms of constipation in people with severe or profound intellectual and multiple disabilities: A Delphi study

Background

Chronic constipation is common in people with intellectual disabilities, and seems to be highly prevalent in people with severe or profound intellectual and multiple disabilities (SPIMD). However, there is no current widely accepted definition for the constipation experienced by these individuals.

Aim

This Delphi study aims to compile a list of operationalized criteria and symptoms of constipation in people with SPIMD based on practical experiences of and consensus between experts supporting them.

Methods

A two-round Delphi study with an intermediate evaluation and analyses was conducted. Parents and relatives of persons with SPIMD and support professionals were included. The panel answered statements and open questions about symptoms and criteria of constipation. They were also requested to provide their opinion about classifying criteria and symptoms into domains. Answers to statements were analysed separately after both rounds with regard to consensus rate and displayed qualitatively; answers to open questions were analysed deductively.

Results

In the first Delphi round (n = 47), consensus was achieved on criteria within the domains 'Defecation' and 'Physical features', that were assigned to broader categories. Symptoms retrieved within the domain 'Behavioural/Emotional' were brought back to the panel as statements. After the second Delphi round (n = 38), consensus was reached on questions about domains, and for eight criteria (domain 'Defecation' n = 5; domain 'Physical features n = 3). Within the domain 'Behavioural/Emotional', consensus was achieved for five symptoms. Criteria and symptoms with consensus >70% were considered 'generic' and <70% as 'personal'. Symptoms mentioned in the text boxes were used to operationalize categories.

Discussion and conclusion

It was possible to compile a list of generic criteria related to the domains 'Defecation' (n = 5) and 'Physical features' (n = 3) supplemented with generic symptoms related to the domain 'Behavioural/Emotional' (n = 5). We propose using both generic as well as personal criteria and symptoms resulting in a personal profile for an individual with SPIMD. Based on the current results, we recommend follow-up research to develop a screening tool to be used by relatives and professional caregivers, and a definition of constipation. This may support reciprocal collaboration and lead to timely identification of constipation in people with SPIMD.

Behaviour change techniques used in lifestyle support of adults with mild intellectual disabilities

BACKGROUND

Professional caregivers are important in the daily support of lifestyle change for adults with mild intellectual disabilities; however, little is known about which behaviour change techniques (BCTs) are actually used. This study aims to gain insight in their use for lifestyle behaviour change using video observations.

METHODS

Professional caregivers (N = 14) were observed in daily work supporting adults with mild intellectual disabilities. Videos were analysed using the Coventry Aberdeen London Refined (CALO-RE-NL) taxonomy and BCTs utilised were coded.

RESULTS

Twenty one out of 40 BCTs were used by professional caregivers. The BCTs 'Information about others' approval', 'Identification as role model', 'Rewards on successful behaviour', 'Review behavioural goals' and 'Instructions on how to perform the behaviour' were most employed.

CONCLUSION

Professional caregivers used BCTs to support healthier lifestyle behaviour of adults with mild intellectual disabilities. However, most promising of them as defined previous by professionals were rarely used by professional caregivers.

Development of a Dutch Training/Education Program for a Healthy Lifestyle of People With Intellectual Disability

Individuals with intellectual disability (ID) need support from direct support professionals (DSPs) to engage in a healthy lifestyle. However, literature shows DSPs feel insufficiently equipped to support a healthy lifestyle. Therefore, the aim of this study is to develop a theory-based program for DSPs to support physical activity and healthy nutrition for people with moderate to profound levels of ID, and to design its evaluation. The Intervention Mapping Protocol (IM) was followed to develop a theory-based program for DSPs. The program evaluation consists of process and feasibility evaluations. This study provided a theory-based program consisting of a training and education section with online and face-to-face components to support DSPs in promoting health for people with ID.

Use of behaviour change techniques by direct support professionals to support healthy lifestyle behaviour for people with moderate to profound intellectual disabilities

BACKGROUND

Behaviour change techniques (BCTs) can be employed to support a healthy lifestyle for people with intellectual disabilities. The aim of this study is to determine whether and which BCTs are used by direct support professionals (DSPs) for supporting healthy lifestyle behaviour of people with moderate to profound intellectual disabilities.

METHOD

Direct support professionals (n = 18) were observed in their daily work using audio-visual recordings. To code BCTs, the Coventry Aberdeen London Refined (CALO-RE-NL) taxonomy was employed.

RESULTS

Direct support professionals used 33 BCTs out of 42. The most used BCTs were as follows: 'feedback on performance', 'instructions on how to perform the behaviour', 'doing together', 'rewards on successful behaviour', 'reward effort towards behaviour', 'DSP changes environment', 'graded tasks', 'prompt practice' and 'model/demonstrate behaviour'.

CONCLUSIONS

Although a variety of BCTs is used by DSPs in their support of people with moderate to profound intellectual disabilities when facilitating healthy lifestyle behaviour, they rely on nine of them.

Factors influencing the opportunities of supporting staff to promote a healthy diet in adults with intellectual disabilities

BACKGROUND

Adults with intellectual disabilities living in residential houses have a high prevalence of obesity which is related to poor dietary habits.

AIM

The aim of this study was to assess supporting staff`s thoughts and experiences on factors influencing their opportunities to promote a healthy diet in adults with intellectual disabilities.

METHODS

13 supporting staff members were recruited from 11 different residential houses in a community. Concept Mapping methodology was used, including group interviews, sorting, rating statement and analysing the results.

RESULTS

Seven clusters most accurately captured the ideas of the supporting staff`. 'Attitudes', 'Facilitating a healthy diet', 'Practical cooking skills' and 'Applied dietary knowledge' were the four most important.

CONCLUSIONS

Multiple factors influence the opportunities of supporting staff to promote a healthy diet. A holistic approach addressing all relevant factors is necessary when developing interventions to address this complex issue in persons with intellectual disabilities.