Health and functional status of adults with intellectual disability referred to the specialist health care setting: a five-year experience

Screening for glucose intolerance and development of a lifestyle education programme for prevention of type 2 diabetes in a population with intellectual disabilities: the STOP Diabetes research project

Background

The prevalence of type 2 diabetes mellitus (T2DM) and of cardiovascular disease (CVD) is believed to be higher among people with intellectual disability (ID) than in the general population. However, research on prevalence and prevention in this population is limited.

Objectives

The objectives of this programme of work were to establish a programme of research that would significantly enhance the knowledge and understanding of impaired glucose regulation (IGR) and T2DM in people with ID; to test strategies for the early identification of IGR and T2DM in people with ID; and to develop a lifestyle education programme and educator training protocol to promote behaviour change in a population with ID and IGR (or at a high risk of T2DM/CVD).

Setting

Leicestershire, UK.

Participants

Adults with ID were recruited from community settings, including residential homes and family homes. Adults with mild to moderate ID who had an elevated body mass index (BMI) of ≥ 25 kg/m2and/or IGR were invited to take part in the education programme.

Main outcome measures

The primary outcome of the screening programme was the prevalence of screen-detected T2DM and IGR. The uptake, feasibility and acceptability of the intervention were assessed.

Data sources

Participants were recruited from general practices, specialist ID services and clinics, and through direct contact.

Results

A total of 930 people with ID were recruited to the screening programme: 58% were male, 80% were white and 68% were overweight or obese. The mean age of participants was 43.3 years (standard deviation 14.2 years). Bloods were obtained for 675 participants (73%). The prevalence of previously undiagnosed T2DM was 1.3% [95% confidence interval (CI) 0.5% to 2%] and of IGR was 5% (95% CI 4% to 7%). Abnormal IGR was more common in those of non-white ethnicity; those with a first-degree family history of diabetes; those with increasing weight, waist circumference, BMI, diastolic blood pressure or triglycerides; and those with lower high-density lipoprotein cholesterol. We developed a lifestyle educational programme for people with ID, informed by findings from qualitative stakeholder interviews (health-care professionals,n = 14; people with ID,n = 7) and evidence reviews. Subsequently, 11 people with ID (and carers) participated in pilot education sessions (two groups) and five people attended education for the feasibility stage (one group). We found that it was feasible to collect primary outcome measures on physical activity and sedentary behaviour using wrist-worn accelerometers. We found that the programme was relatively costly, meaning that large changes in activity or diet (or a reduction in programme costs) would be necessary for the programme to be cost-effective. We also developed a quality development process for assessing intervention fidelity.

Limitations

We were able to screen only around 30% of the population and involved only a small number in the piloting and feasibility work.

Conclusions

The results from this programme of work have significantly enhanced the existing knowledge and understanding of T2DM and IGR in people with ID. We have developed a lifestyle education programme and educator training protocol to promote behaviour change in this population.

Future work

Further work is needed to evaluate the STOP Diabetes intervention to identify cost-effective strategies for its implementation.

Trial registration

ClinicalTrials.gov NCT02513277.

Funding

The National Institute for Health Research Programme Grants for Applied Research programme and will be published in full inHealth Research Programme Grants for Applied Research; Vol. 5, No. 11. See the NIHR Journals Library website for further project information.

Low bone mineral density risk factors and testing patterns in institutionalized adults with intellectual and developmental disabilities

BACKGROUND

Adults with intellectual or developmental disability (ID/DD) have multiple risks for low bone mineral density (BMD) without formal guidelines to guide testing. We sought to identify risk factors and patterns of BMD testing among institutionalized adults with ID/DD.

METHODS

We evaluated risk factors for low BMD (Z-/T-score < -1) and patterns of BMD testing among adults with ID/DD receiving care at a state-run residential facility. Kruskal-Wallis, Fisher's exact and Pearson's chi-squared tests were used as appropriate.

RESULTS

Of the 140 eligible patients, only 44% ever had BMD testing of which 89% had low BMD. Median age at diagnosis was 42 years old. Individuals with low BMD were more likely to be older, non-weight bearing, Caucasian and have severe cognitive delay.

CONCLUSIONS

Adults with ID/DD in this facility had a high prevalence of low BMD. Further studies are needed to better characterize risk factors and inform screening within this high-risk population.

Prevalence of falls and risk factors in adults with intellectual disability

The purpose of this study was to examine the prevalence of falls and risk factors for falls in 1,515 adults (≥ 18 years) with intellectual disability using baseline data from the Longitudinal Health and Intellectual Disability Study. Nearly 25% of adults from the study were reported to have had one or more falls in the past 12 months. The prevalence of falls increased with advancing age. A series of univariate and multivariate logistic regressions were performed to identify risk factors for falls in the full sample and in subsamples. The risk factors for falls in adults with intellectual disability are being female, having arthritis, having a seizure disorder, taking more than 4 medications, using walking aids, and having difficulty lifting/carrying greater than 10 lb.