The All Together Group: Co-Designing a Toolkit of Approaches and Resources for End-of-Life Care Planning With People With Intellectual Disabilities in Social Care Settings.

INTRODUCTION: Support staff within social care settings have expressed a need for resources to facilitate end-of-life care planning with people with intellectual disabilities. This study aimed to co-design a preliminary toolkit of end-of-life care planning approaches and resources that can be implemented in adult social care services for people with intellectual disabilities. METHODS: An adapted Experience-Based Co-Design process was applied to develop a toolkit for end-of-life care planning with people with intellectual disabilities. A co-design group (the 'All Together Group') met six times from January to October 2023. The group comprised nine people with intellectual disabilities (including four researchers with intellectual disabilities, who also co-facilitated the workshops), five family members, five intellectual disability support staff, two intellectual disability service managers, and five healthcare professionals. RESULTS: The All Together Group tested resources for and approaches to end-of-life care planning with people with intellectual disabilities, based on findings from a scoping review and a focus group study. Easy-read end-of-life care planning forms were deemed overwhelming and complicated, whilst visual and creative approaches were welcomed. Three new visual resources to support illness planning and funeral planning with people with intellectual disabilities were developed: (i) 'When I'm ill' thinking cards; (ii) 'Let's Talk About Funerals' conversation-starter pictures; and (iii) 'My funeral' planning cards. These three resources, alongside three positively evaluated existing resources, were included in a new toolkit for end-of-life care planning with people with intellectual disabilities. CONCLUSION: Through an iterative, flexible, inclusive, and comprehensive co-design process, a toolkit of three newly developed and three existing resources was created to facilitate support staff in doing end-of-life care planning with people with intellectual disabilities. Following a trialling process with support staff, the final toolkit was made freely available online. PATIENT OR PUBLIC CONTRIBUTION: The research team included four researchers with intellectual disabilities (A.C., D.J., L.J., and R.K.-B). Researchers with intellectual disability have been part of every step of the research process; from study design to data collection and analysis to dissemination of study findings.Intellectual disability service provider representatives (M.W., N.P., and S.S.) were part of the co-design group as well. Two of these representatives were also co-applicants in the overall project (N.P. and S.S.). The co-design group included people with intellectual disabilities, families, intellectual disability support staff and health and social care professionals. The study was supported by a Research Advisory Group comprising a variety of stakeholders, including people with intellectual disabilities families, intellectual disability researchers, representatives from intellectual disability organisations, and policymakers.

Improving support and planning ahead for older people with learning disabilities and family carers: a mixed-methods study.

Background: People with learning disabilities are living longer. Despite government policy to encourage people to lead supported lives in their community, family carers often maintain support due to dissatisfaction with services. This can lead to people moving from the family home in a crisis. Objectives: (1) Find out what is known about health needs and resources for older people with learning disabilities (aged ≥ 40 years); (2) identify exemplars of good services for older people with learning disabilities; (3) explore service exemplars through ethnographic case studies; (4) evaluate support for older people with learning disabilities and their families through co-producing and testing future planning tools and (5) co-produce recommendations and resources. Design and methods: Work package 1 rapid scoping reviews - three reviews focused on the health and social care needs of older people with learning disabilities and 'behaviours that challenge others', and family carers, and the co-ordination of support for this group. Work package 2 scoping and mapping exemplars of good practice - analysis of published service standards to assess excellence criteria, by mapping services, interviews (n = 30), survey (n = 9) and informal discussion with commissioners. Work package 3 ethnography of case studies of exemplar provision; independent supported living (n = 4); residential/nursing home (n = 2); day activities (n = 1), Shared Lives (n = 2). Fieldwork (20 days per model), interviews (n = 77) with older people with learning disabilities, family carers, support staff and commissioners. Work package 4 - co-producing and testing resources for older people with learning disabilities and their families involved interviews and focus groups with 36 people with learning disabilities, parents, and siblings, and experience-based co-design with 11 participants. Eight families evaluated the resources. Work package 5 - three stakeholder workshops co-produced service recommendations. Findings: The reviews confirmed an inadequate evidence base concerning the experiences and support of family carers and older people with learning disabilities and 'behaviours that challenge others'. Criteria of excellence were produced, and a shortlist of 15 services was identified for consideration in work package 3. The ethnographic work found that environmental, organisational and social factors were important, including supporting independence and choice about who people live with, matching staff to people, consistent relationships and adapting to ageing. Practices of institutionalisation were observed. In work package 4, we found that families were worried about the future and unsupported to explore options. 'Planning Ahead' cards and a booklet to record discussions were produced, and the evaluation was positively rated. Finally, formative discussion informed recommendations. Outputs include training packages, a carers' forum, a film, a podcast and academic papers. Conclusions: There is little focus on older people with learning disabilities and family carers. Services vary in their approach to planning for older-age support. Families are unsupported to plan, leaving people without choice. 'Behaviours that challenge others' was found to be unhelpful terminology. Recommendations: A new strategy is recommended for older people with learning disabilities and family carers that encompasses commissioning practices, professional input and peer learning, proactive support in ageing well and excellent service design. Limitations: The COVID-19 pandemic created recruitment challenges. Reliance on providers for recruitment resulted in a lack of diversity in work package 3. Families' plans, and therefore change, may be frustrated by insufficient service resources. Future work: Given the lack of focus in this area, there is a range of future work to consider: experiences of older people with learning disabilities from diverse ethnic backgrounds; supporting people to age and die 'in place'; best practice regarding designing/commissioning services, including housing; the role of social workers; access to nature; accessing mainstream support; and evaluation of the 'Planning Ahead' cards. Trial registration: This trial is registered as ISRCTN74264887. Funding: This award was funded by the National Institute for Health and Care Research (NIHR) Health and Social Care Delivery Research programme (NIHR award ref: NIHR129491) and is published in full in Health and Social Care Delivery Research; Vol. 12, No. 16. See the NIHR Funding and Awards website for further award information.

People with learning disabilities are living longer, but most live with their families, who are also getting older. This is because there are not enough suitable places for people with learning disabilities to live, and family carers worry that the person will not get the right support and have a good life. Our research aimed to improve support for people with learning disabilities and their family carers to plan ahead for a good life. We focused on people who are labelled with 'behaviours that challenge others'. We read what has been written about this area. We looked for and found examples of excellent support for older people with learning disabilities. Researchers and people with learning disabilities and family carers spent time hanging out with people where they live or spend their days to see what support they get. Then we had three meetings with everyone involved and discussed our research findings with people with learning disabilities, family carers, and professionals. We found that people can be supported to live good lives as they grow older. This can be living alone or with people they choose, and it means having staff they like and who like them and being supported to be active. However, we found that ageing of people with learning disabilities is often ignored, and some people were not living good lives. We also found that the label of 'behaviours that challenge others' is unhelpful. We worked with people with learning disabilities and family carers to make a set of cards with pictures and questions to help people plan ahead for a good life. We produced resources and made recommendations to create a new plan for older people with learning disabilities to support people to lead good lives. This is very important because there is a lack of attention to and support for people with learning disabilities as they age.

What are we planning, exactly? The perspectives of people with intellectual disabilities, their carers and professionals on end-of-life care planning: A focus group study.

BACKGROUND: Deaths of people with intellectual disabilities are often unplanned for and poorly managed. Little is known about how to involve people with intellectual disabilities in end-of-life care planning. AIM: To explore the perspectives of people with intellectual disabilities, families, health and social care professionals and policy makers on end-of-life care planning within intellectual disability services. DESIGN: A total of 11 focus groups and 1 semi-structured interview were analysed using qualitative framework and matrix analysis. The analysis was conducted inclusively with co-researchers with intellectual disabilities. SETTING/PARTICIPANTS: A total of 60 participants (14 people with intellectual disabilities, 9 family carers, 21 intellectual disability professionals, 8 healthcare professionals and 8 policy makers) from the UK. RESULTS: There were differences in how end-of-life care planning was understood by stakeholder groups, covering four areas: funeral planning, illness planning, planning for living and talking about dying. This impacted when end-of-life care planning should happen and with whom. Participants agreed that end-of-life care planning was important, and most wanted to be involved, but in practice discussions were postponed. Barriers included issues with understanding, how or when to initiate the topic and a reluctance to talk about dying. CONCLUSIONS: To develop effective interventions and resources aiding end-of-life care planning with people with intellectual disabilities, clarity is needed around what is being planned for, with whom and when. Research and development are needed into supporting intellectual disability staff in end-of-life care planning conversations. Collaboration between intellectual disability staff and palliative care services may facilitate timely end-of-life care planning and thus optimal palliative end-of-life care.

Co-designing resources to support older people with intellectual disabilities and their families plan for parental death and transitions in care.

BACKGROUND: Older people with intellectual disabilities and their families report a lack of support for planning for parental death and transitions in care. This article aims to demonstrate the process of co-designing resources to support older people with intellectual disabilities and their families to plan for the future. METHODS: Following interviews and focus groups with older people with intellectual disabilities and their families, we used an adapted experience-based co-design process to develop planning ahead resources. This included a 'trigger film' summarising findings from the earlier interview study, 12 co-design workshops and a user feedback phase. RESULTS: The co-design group developed a set of 102 'Planning Ahead Cards' to help families to talk about the future and prepare for meetings with social care professionals. The group made decisions about the content, format and design of resources, and how co-design workshops would run. The user feedback phase led to changes to the cards, and families and stakeholder groups suggested that they would be useful for planning ahead. CONCLUSION: The Planning Ahead Cards may facilitate planning for parental death and transitions in care for older people with intellectual disabilities and their families. The co-design approach was key to ensuring that the resources were useful and accessible for families. PATIENT OR PUBLIC CONTRIBUTION: People with intellectual disabilities and their families contributed to the design of the resources through the co-design workshops and feedback phase. The research team includes a research assistant with intellectual disabilities who co-facilitated co-design workshops and co-authored this article.

'There's a timebomb': Planning for parental death and transitions in care for older people with intellectual disabilities and their families.

BACKGROUND: Increasing numbers of older adults with intellectual disabilities are living with ageing parents. These families need support to plan for the future to avoid crisis interventions following parental death. METHOD: Interviews and focus groups were conducted with people with intellectual disabilities (aged 40+) (N = 9), parents (N = 11) and siblings (N = 16) to understand their perspectives about living with parents and future planning. Data were analysed using framework analysis. RESULTS: Four themes were identified: 'What matters to me', 'When should we plan', 'What are the options' and 'Who will help'. Participants knew they needed to make plans but did not feel supported to do so. While they viewed moving as an opportunity for independence, they feared there were no viable alternatives. CONCLUSION: Person-centred resources and support are needed for families to plan for transitions in care, including proactive approaches from social services and help to prepare for conversations with social care professionals.

A Novel Randomized Trial Protocol for Evaluating Wound Healing Interventions.

Background: Randomized controlled trials using complete healing as an endpoint suffer from poor statistical power, owing to the heterogeneity of wounds and their healing trajectories. The Food and Drug Administration (FDA) has recently consulted with expert groups to consider percentage area reduction (PAR) of the wound over a 4-week period as a valid intermediate endpoint, creating the opportunity for more powerful study designs. Methods: A within-subject controlled study design comparing the PAR of venous leg ulcers (VLU) in patients over 4 weeks receiving different interventions. Twenty-nine patients received multilayer compression over 4 weeks, followed by neuromuscular electrostimulation (NMES) of the leg muscle pump in addition to compression for a further 4 weeks. Paired comparison was then made of PAR between the two phases. A second cohort of 22 patients received only multilayer compression throughout both 4-week phases. Results: Patients randomized to NMES saw a significant increase in healing rate compared with compression alone, whereas patients receiving compression only saw no significant change in healing rate throughout the course of the study. Conclusions: Intermittent NMES of the common peroneal nerve significantly accelerates the healing of VLU. It is well tolerated by patients and deserves serious consideration as an adjuvant to compression therapy. PAR is a useful metric for comparing the performance of wound healing interventions, and the self-controlled trial design allows sensitive discrimination with a relatively small number of subjects over a reasonably short trial period. The study is reported according to the CONSORT reporting guidelines. Clinical Trial Registration: NCT03396731 (ClinicalTrials.gov).

The impact of a new intervention for venous leg ulcers: A within-patient controlled trial.

A major obstacle to the development of new treatments for venous leg ulcers is the difficulty in generating evidence for their effectiveness. Randomised controlled trials using complete healing as the endpoint are seldom powered to be successful, owing to the heterogeneity of cohorts. A novel approach to the evaluation of treatments is presented, using a self-controlled trial model and two metrics of short-term healing rate as alternate endpoints: rate of wound margin advance, and percentage area reduction over 4 weeks. Two different treatment regimens are compared: multi-layer compression alone, versus multi-layer compression combined with activation of the venous leg pump by neuromuscular stimulation. With 60 patients, adding neuromuscular stimulation to multilayer compression resulted in a significant two-fold increase in the rate of wound healing over a 4-week period, both in terms of wound margin advance and in terms of percentage area reduction. The use of these short-term intermediate endpoint metrics together with a self-controlled study design offers potential for distinguishing between the relative efficacies of interventions more rapidly, with greater sensitivity, and with fewer subjects than a conventional RCT cohort model.

Environmental performance measurement in arts and cultural organisations: Exploring factors influencing organisational changes.

Arts and Cultural Organisations (ACOs) have received significant attention over the last few years regarding their environmental performance. ACOs are often non-profit organisations, relying on government funding to implement various programmes to support societal development. Funding dependence can shift ACOs' focus from creating socio-cultural value to being more commercially driven. This paper explores factors influencing organisational changes in ACOs related to environmental performance measurement. Stakeholders in ACOs based in Nottingham, England, were interviewed and participated in a workshop to validate and collect additional data. Our research uncovered five interrelated factors that influence organisational change: the role of funding bodies; local policies and networks; organisational culture and leadership; lack of resources; and building proprietary-tenant relationships. This paper contributes to understanding ACOs responses to measuring environmental performance and the challenges they face as they move from measuring to implementation. Implications are explored for how funding is allocated and understood in terms of moving beyond merely measuring the carbon footprint of activities. ACOs' funding dependence indicates a focus on carbon measurement, omitting a more holistic approach towards the environment and sustainability.

'Internet is easy if you know how to use it': Doing online research with people with learning disabilities during the COVID-19 pandemic.

Background: The coronavirus disease 2019 pandemic changed the way we live, work, interact and do research. Many activities moved online, and digital inclusion became an urgent issue for researchers working with people with learning disabilities and other groups at risk of exclusion. This has generated new questions about how we conduct research and what it means to go into 'the field'. Methods: We discuss our experience working across four qualitative research projects involving 867 participants with learning disabilities, conducted during the coronavirus disease 2019 pandemic. Findings: Moving research online resulted in often-swift adaptations to research designs and practice, bringing new insights and benefits to our studies. The changing circumstances fostered innovation and greater flexibility and contributed to research becoming more accessible to many. However, doing research online also posed new challenges as well as amplified existing ones. Conclusions: The pandemic has made it easier for some people with learning disabilities to participate in research, but more needs to be done to improve the reach and quality of that participation. Researchers should make the process of participation as accessible as possible. It is also their job to question and challenge the conditions that create barriers to participation in research and to look for ways to change these. We make some recommendations on how this can be achieved.

An agenda for future Social Sciences and Humanities research on energy efficiency: 100 priority research questions.

Decades of techno-economic energy policymaking and research have meant evidence from the Social Sciences and Humanities (SSH)-including critical reflections on what changing a society's relation to energy (efficiency) even means-have been underutilised. In particular, (i) the SSH have too often been sidelined and/or narrowly pigeonholed by policymakers, funders, and other decision-makers when driving research agendas, and (ii) the setting of SSH-focused research agendas has not historically embedded inclusive and deliberative processes. The aim of this paper is to address these gaps through the production of a research agenda outlining future SSH research priorities for energy efficiency. A Horizon Scanning exercise was run, which sought to identify 100 priority SSH questions for energy efficiency research. This exercise included 152 researchers with prior SSH expertise on energy efficiency, who together spanned 62 (sub-)disciplines of SSH, 23 countries, and a full range of career stages. The resultant questions were inductively clustered into seven themes as follows: (1) Citizenship, engagement and knowledge exchange in relation to energy efficiency; (2) Energy efficiency in relation to equity, justice, poverty and vulnerability; (3) Energy efficiency in relation to everyday life and practices of energy consumption and production; (4) Framing, defining and measuring energy efficiency; (5) Governance, policy and political issues around energy efficiency; (6) Roles of economic systems, supply chains and financial mechanisms in improving energy efficiency; and (7) The interactions, unintended consequences and rebound effects of energy efficiency interventions. Given the consistent centrality of energy efficiency in policy programmes, this paper highlights that well-developed SSH approaches are ready to be mobilised to contribute to the development, and/or to understand the implications, of energy efficiency measures and governance solutions. Implicitly, it also emphasises the heterogeneity of SSH policy evidence that can be produced. The agenda will be of use for both (1) those new to the energy-SSH field (including policyworkers), for learnings on the capabilities and capacities of energy-SSH, and (2) established energy-SSH researchers, for insights on the collectively held futures of energy-SSH research.

Measuring progress to healing: A challenge and an opportunity.

Complete healing is problematic as an endpoint for evaluating interventions for wound healing. The great heterogeneity of wounds makes it difficult to match groups, and this is only possible with multivariate stratification and/or very large numbers of subjects. The substantial time taken for wounds to heal necessitates a very lengthy study. Consequently, high quality randomised controlled trials demonstrating an effect of an intervention to a satisfactory level of statistical significance and with a satisfactory level of generalisability are extremely rare. This study determines that the healing of venous leg ulcers receiving multi-component compression bandaging follows a linear trajectory over a 4-week period, as measured by gross area healed, percentage area healed, and advance of the wound margin. The linear trajectories of these surrogates make it possible to identify an acceleration in healing resulting from an intervention, and allows self-controlled or crossover designs with attendant advantages of statistical power and speed. Of the metrics investigated, wound margin advance was the most linear, and was also independent of initial ulcer size.

Development of a rat and human PBPK model for bromate and estimation of human equivalent concentrations in drinking water.

A physiologically based pharmacokinetic (PBPK) model was developed to described uptake, disposition and clearance of bromate in the rat using published experimental data in rat. The rodent bromate model was extrapolated to human using species-specific physiological parameters and standard interspecies scaling of rate constants. The bromate model is kinetically linear (i.e. AUC and Cmax) across the range of drinking water concentrations used in the cancer bioassays (15 to 500 ppm). This is likely the result of the poor oral bioavailability of bromate due to high reduction rates in the intestinal tract. The bromate PBPK model was used to assess the human equivalent drinking water concentration (HEC) consistent with average plasma concentrations in the rodent bioassays. At drinking water concentrations <500 mg/L, the predicted HEC was two to three fold lower than the bioassay concentration and was dependent on the reported drinking water intake reported in the bioassay.

THE MAYAK WORKER DOSIMETRY SYSTEM (MWDS-2016): INTERNAL DOSIMETRY RESULTS AND COMPARISON WITH MWDS-2013.

Differences in results from the new Mayak Worker Dosimetry System (MWDS-2016) vs the previous MWDS-2013 are described. Statistical characteristics are shown for the distribution of accumulated absorbed doses to organs for 8340 workers with bioassay data. Differences in mean values of accumulated doses and their relative standard uncertainties calculated by MWDS-2016 and MWDS-2013 were analysed separately for various types of industrial compounds of plutonium, specifically nitrates, mixtures and oxides. Within the range of accumulated doses >1 mGy, lung doses for nitrates and mixtures decreased by 41 and 15%, respectively, and remained at the same level for oxides. Accumulated liver doses within the range >1 mGy increased for nitrates and mixtures by 13 and 8%, respectively, and decreased for oxides by 7%.

Risk of Lung Cancer Mortality in Nuclear Workers from Internal Exposure to Alpha Particle-emitting Radionuclides.

BACKGROUND: Carcinogenic risks of internal exposures to alpha-emitters (except radon) are poorly understood. Since exposure to alpha particles-particularly through inhalation-occurs in a range of settings, understanding consequent risks is a public health priority. We aimed to quantify dose-response relationships between lung dose from alpha-emitters and lung cancer in nuclear workers. METHODS: We conducted a case-control study, nested within Belgian, French, and UK cohorts of uranium and plutonium workers. Cases were workers who died from lung cancer; one to three controls were matched to each. Lung doses from alpha-emitters were assessed using bioassay data. We estimated excess odds ratio (OR) of lung cancer per gray (Gy) of lung dose. RESULTS: The study comprised 553 cases and 1,333 controls. Median positive total alpha lung dose was 2.42 mGy (mean: 8.13 mGy; maximum: 316 mGy); for plutonium the median was 1.27 mGy and for uranium 2.17 mGy. Excess OR/Gy (90% confidence interval)-adjusted for external radiation, socioeconomic status, and smoking-was 11 (2.6, 24) for total alpha dose, 50 (17, 106) for plutonium, and 5.3 (-1.9, 18) for uranium. CONCLUSIONS: We found strong evidence for associations between low doses from alpha-emitters and lung cancer risk. The excess OR/Gy was greater for plutonium than uranium, though confidence intervals overlap. Risk estimates were similar to those estimated previously in plutonium workers, and in uranium miners exposed to radon and its progeny. Expressed as risk/equivalent dose in sieverts (Sv), our estimates are somewhat larger than but consistent with those for atomic bomb survivors.See video abstract at, http://links.lww.com/EDE/B232.

Reconstruction of Internal Doses for the Alpha-Risk Case-Control Study of Lung Cancer and Leukaemia Among European Nuclear Workers.

The Alpha-Risk study required the reconstruction of doses to lung and red bone marrow for lung cancer and leukaemia cases and their matched controls from cohorts of nuclear workers in the UK, France and Belgium. The dosimetrists and epidemiologists agreed requirements regarding the bioassay data, biokinetic and dosimetric models and dose assessment software to be used and doses to be reported. The best values to use for uncertainties on the monitoring data, setting of exposure regimes and characteristics of the exposure material, including lung solubility, were the responsibility of the dosimetrist responsible for each cohort. Among 1721 subjects, the median absorbed dose to the lung from alpha radiations was 2.1 mGy, with a maximum dose of 316 mGy. The lung doses calculated reflect the higher levels of exposure seen among workers in the early years of the nuclear industry compared to today.

Concerted Uranium Research in Europe (CURE): toward a collaborative project integrating dosimetry, epidemiology and radiobiology to study the effects of occupational uranium exposure.

The potential health impacts of chronic exposures to uranium, as they occur in occupational settings, are not well characterized. Most epidemiological studies have been limited by small sample sizes, and a lack of harmonization of methods used to quantify radiation doses resulting from uranium exposure. Experimental studies have shown that uranium has biological effects, but their implications for human health are not clear. New studies that would combine the strengths of large, well-designed epidemiological datasets with those of state-of-the-art biological methods would help improve the characterization of the biological and health effects of occupational uranium exposure. The aim of the European Commission concerted action CURE (Concerted Uranium Research in Europe) was to develop protocols for such a future collaborative research project, in which dosimetry, epidemiology and biology would be integrated to better characterize the effects of occupational uranium exposure. These protocols were developed from existing European cohorts of workers exposed to uranium together with expertise in epidemiology, biology and dosimetry of CURE partner institutions. The preparatory work of CURE should allow a large scale collaborative project to be launched, in order to better characterize the effects of uranium exposure and more generally of alpha particles and low doses of ionizing radiation.

TESTING THE IDEAS GUIDELINES AS APPLIED TO PLUTONIUM INTAKES.

The IDEAS Guidelines [Doerfel, H., et al General Guidelines for the Estimation of Committed Effective Dose from Incorporation Monitoring Data. Report FZKA 7243, Forschungszentrum Karlsruhe, GmbH (2006); Castellani, C. M., Marsh, J. W., Hurtgen, C., Blanchardon, E., Berard, P., Giusani, A. and Lopez, M. A. IDEAS Guidelines (Version 2) for the Estimation of Committed Doses from Incorporation Monitoring Data. EURADOS Report 2013-01, Braunschweig (2013)] provide a structured approach to the assessment of intakes of radionuclides. In order to check that the guidelines, when applied to typical monitoring programmes, lead to reliable assessments, a number of numerically-generated datasets have been constructed and assessed using the guidelines. The dose and intake obtained by the assessment can be compared with the 'true' dose and intake. In this way, the accuracy of the IDEAS assessment process can be examined when applied to monitoring programmes that are typically used in the nuclear industry. The simulations focus on assessments carried out as a result of elevated (239)Pu activities in routine urine samples, which lead to follow-up urine and faecal samples being provided. Cases where the assessor makes the correct initial assumption about lung solubility can be compared with cases where this initial choice is wrong. The results of these simulations and the implication for the use of monitoring programmes are discussed.

An intake of C14-labelled dichlorobenzene.

An intake of C14 in the form of dichlorobenzene was followed up with 90 spot urine samples over a period of almost 2 weeks. This dataset has been fitted by a model consisting of three exponential terms. The intake and effective dose have been calculated. This case has been used to examine the effects of recent proposals by ICRP concerning the calculation of effective dose and the use of non-standard biokinetic models.