A longitudinal cohort study on the use of health and care services by older adults living at home with/without dementia before and during the COVID-19 pandemic: the HUNT study.

BACKGROUND: Older adults and people with dementia were anticipated to be particularly unable to use health and care services during the lockdown period following the COVID-19 pandemic. To better prepare for future pandemics, we aimed to investigate whether the use of health and care services changed during the pandemic and whether those at older ages and/or dementia experienced a higher degree of change than that observed by their counterparts. METHODS: Data from the Norwegian Trøndelag Health Study (HUNT4 70 + , 2017-2019) were linked to two national health registries that have individual-level data on the use of primary and specialist health and care services. A multilevel mixed-effects linear regression model was used to calculate changes in the use of services from 18 months before the lockdown, (12 March 2020) to 18 months after the lockdown. RESULTS: The study sample included 10,607 participants, 54% were women and 11% had dementia. The mean age was 76 years (SD: 5.7, range: 68-102 years). A decrease in primary health and care service use, except for contact with general practitioners (GPs), was observed during the lockdown period for people with dementia (p < 0.001) and those aged ≥ 80 years without dementia (p = 0.006), compared to the 6-month period before the lockdown. The use of specialist health services decreased during the lockdown period for all groups (p ≤ 0.011), except for those aged < 80 years with dementia. Service use reached levels comparable to pre-pandemic data within one year after the lockdown. CONCLUSION: Older adults experienced an immediate reduction in the use of health and care services, other than GP contacts, during the first wave of the COVID-19 pandemic. Within primary care services, people with dementia demonstrated a more pronounced reduction than that observed in people without dementia; otherwise, the variations related to age and dementia status were small. Both groups returned to services levels similar to those during the pre-pandemic period within one year after the lockdown. The increase in GP contacts may indicate a need to reallocate resources to primary health services during future pandemics. TRIAL REGISTRATION: The study is registered at ClinicalTrials.gov, with the identification number NCT04792086.

Exploring the lived experience: impact of dementia diagnosis on individuals with cognitive impairment - a qualitative study.

OBJECTIVE: Although knowledge about the experience of being diagnosed with dementia is limited, with the expected rise in dementia's prevalence in the coming decades, such knowledge is pivotal for the people diagnosed, their families, and healthcare planners. Thus, the aim of our study was to explore the experience of living with cognitive impairment and dementia and the impact of being diagnosed with dementia. METHOD: A qualitative design was applied. Participants were recruited based on age-adjusted values below ​​threshold values on the Montreal Cognitive Assessment Scale (i.e. 70-79 years, < 22; 80-89 years, < 21; 90 + years, < 20), and the sample ultimately included 15 participants: six with and nine without a documented dementia diagnosis. Qualitative content analysis was performed on the transcribed interviews in four steps to identify codes, categories, and the overall theme. RESULTS: Three major categories emerged from the interviews: (1) experiences with changes, (2) experiences with being diagnosed with dementia, and (3) existential experience. All participants with and most participants without a dementia diagnosis experienced changes in cognition. CONCLUSION: Our findings imply that being diagnosed with dementia is a relief because it explains observed cognitive and functional decreases and reduces confusion, shame and stigma. However, it also raises concerns about an unknown future. Most participants not diagnosed with dementia reported having little or no difficulty with everyday living and leading a fulfilling life. Those findings emphasise the significance of timely versus early diagnosis.

Development and acceptability of the person-centred observation and reflection tool for supporting staff and practice development in dementia care services.

BACKGROUND: Observational tools can support the understanding of the complex needs of older people with dementia and aid delivery of person-centred care. However, existing tools are complex and resource intensive to use. OBJECTIVES: To develop and evaluate the acceptability and feasibility of a low-resource, observational tool to support staff reflection and practice development. METHODS: Intervention development of the Person-Centred Observation and Reflection Tool (PORT) and acceptability and feasibility study, using surveys and focus groups in the UK, Norway and Spain. RESULTS: PORT was reported as easy, accessible and acceptable to use. The observation was identified as powerful for individual staff development and provided an evidence-based source for underpinning individualised care planning. Potential time challenges associated with implementation were identified. CONCLUSION: Initial evaluation indicates PORT is an acceptable and feasible tool for use in health and social care settings for older people. Further research is needed on implementation models and the impacts of PORT use. IMPLICATIONS FOR PRACTICE: PORT may be a useful tool to support individual staff development in care settings and person-centred care planning for people with dementia.

Norwegian nurses' perceptions of assisted dying requests from terminally ill patients-A qualitative interview study.

This study explores the perceptions of Norwegian nurses who have received assisted dying requests from terminally ill patients. Assisted dying is illegal in Norway, while in some countries, it is an option. Nurses caring for terminally ill patients may experience ethical challenges by receiving requests for euthanasia and assisted suicide. We applied a qualitative research design with a phenomenological hermeneutic approach using open individual interviews. A total of 15 registered nurses employed in pulmonary and oncology wards of three university hospitals and home care in one municipality were recruited. Four themes emerged from the analysis: (1) unprepared for the request; (2) meeting direct, indirect, and nonverbal requests; (3) working in a gray zone, and (4) feeling alone and powerless. The study found that nurses were unsure how to handle such requests due to professional uncertainty about assisted dying. Working in an environment where the topic is taboo made nurses morally uncertain, and some perceived this as moral distress. The hospital chaplain played a significant role in providing support to these nurses.

Public knowledge about dementia risk reduction in Norway.

BACKGROUND: Several modifiable lifestyle risk factors for dementia have been identified, but it is unclear how much the Norwegian public knows about the relationship between lifestyle and brain health. Therefore, this study aimed to investigate knowledge about modifiable dementia risk and protective factors and beliefs and attitudes towards dementia and dementia risk reduction in a randomly selected subsample of the Norwegian population. METHODS: The total sample (n = 1435) included individuals aged 40-70 years from four counties (Oslo, Innlandet, Nordland and Trøndelag) in Norway. Two online questionnaires were used to measure (1) awareness about dementia risk reduction and (2) an individual`s motivation to change behaviour for dementia risk reduction (MOCHAD-10). RESULTS: Of the participants, 70% were aware of the potential of dementia risk reduction in general. Physical inactivity (86%), cognitive inactivity (84%) and social isolation (80%) were the most frequently recognised dementia risk factors. On the other hand, diabetes (26%), coronary heart disease (19%), hearing loss (18%) and chronic kidney disease (7%) were less often recognised as dementia risk factors. Comparing men and women, the only significant difference was that women were more likely to report parents with dementia as a risk factor compared to men. Gender, age and educational differences were seen in beliefs and attitudes towards dementia prevention:women reported more negative feelings and attitudes towards dementia than men;those aged 40-49 years - more likely than older age groups - reported that 'knowing family members with dementia' or 'having risk factors' made them believe they had to change their lifestyle and behaviour. CONCLUSIONS: The results indicate that 70% of the Norwegian public are aware of the potential for dementia risk reduction in general. However, there are major gaps in existing knowledge, particularly for cardiovascular risk factors such as hypertension, coronary heart disease, hypercholesterolemia and metabolic factors (diabetes, obesity). These findings underline the importance of further informing the Norwegian public about lifestyle-related risk and protective factors of dementia. Differences in beliefs and attitudes towards dementia risk prevention by age, gender and education require tailored public risk reduction interventions.

Fun and a meaningful routine: the experience of physical activity in people with dementia.

BACKGROUND: Physical activity is important to health and wellbeing. People with dementia are less physically active than their cognitively healthy counterparts. Reasons for this are multifaceted, and are thought to be social, psychological, and physiological. People with dementia often use services such as home care, day care centres and nursing home, and according to the stage of disease they are less or more dependent on other people to take part in activities. To develop appropriate services to this patient group, their needs and preferences regarding physical activity must be recognized. The aim of the study was therefore to provide insight into experiences with physical activity in people with dementia. METHODS: The current study is part of a larger research project on needs in people with dementia. The main project included qualitative semi-structured interviews with 35 persons with dementia. 27 of the participants talked about their experience with physical activity. In the current study, the relevant findings on this theme were analysed separately. A phenomenological hermeneutic research design was applied. RESULTS: The analysis revealed three main categories regarding experiences with physical activity. To be physically active provided positive experiences such as feelings of mastering and post-exercise euphoria. To be physically active was meaningful. The daily walk was an important routine to many, and it gave meaningful content to the day. Keeping up with activities confirmed identity. Lastly, to be active was perceived as challenging. Participants described different barriers to being physically active such as a decline of physical function, lack of motivation and being dependent on others to go out. CONCLUSIONS: Many of the participants expressed that being physically active was important to them. It is essential that informal and formal carers are aware of the role physical activity plays in the lives of many people with dementia, so that appropriate measures can be taken to assure continued active living in order to preserve health and quality of life.

Targeted Interdisciplinary Model for Evaluation and Treatment of Neuropsychiatric Symptoms (TIME) in home care services: a cluster randomized feasibility trial.

BACKGROUND: Behavioral and psychological symptoms of dementia (BPSD) occur frequently in people with dementia and can contribute to an increased need for help and a reduced quality of life, but also predict early institutionalization. The Targeted Interdisciplinary Model for Evaluation and Treatment of Neuropsychiatric Symptoms (TIME) might be a useful personalized approach to BPSD in people with dementia. The main objective of this feasibility trial was to explore the trial design and methods along with the patients' and the home care staff's acceptance of the TIME intervention before developing a definitive trial. Additionally, we wanted to explore whether TIME could be appropriate for staff in home care services in their approach towards people with dementia with anxiety and depression. METHODS: This was a 18-month feasibility trial using a parallel cluster randomized controlled design. Nine municipalities from the eastern part of Norway (clusters) - 40 people with dementia and 37 of their next of kin- were randomized to the TIME intervention or to treatment as usual. In addition, qualitative data as field notes were collected and summarized. RESULTS: The staff in home care services experienced TIME as an appropriate method; in particular, the systematic approach to the patient's BPSD was experienced as useful. However, the completion of the assessment phase was considered exhaustive and time-consuming, and some of the staff found it challenging to find time for the case conferences. CONCLUSIONS: We consider that TIME, with some adjustments, could be useful for staff in home care services in cases where they face challenges in providing care and support to people with dementia. This feasibility trial indicates that we can move forward with a future definitive randomized controlled trial (RCT) to test the effect of TIME in people with dementia receiving home care services. TRIAL REGISTRATION: ClinicalTrial.gov identifier: SI0303150608.

The facilitation of user-involvement for people with dementia as experienced by health care professionals: A qualitative study using focus groups.

OBJECTIVE: The main objective of this study was to explore how health care professionals experience adaptation of user-involvement for people with dementia receiving health and social care. METHOD: A qualitative explorative design was used with eight focus groups as the method of data collection. A total of 49 health care professionals were included representing a variety of professions, municipal and specialized health services, and all health regions of Norway. The transcribed focus group interviews were analyzed using qualitative content analysis following six steps to identify categories and the overall theme. RESULTS: Six main categories were identified: 1) facilitation of self-determination, 2) challenges of reduced or lack of awareness, 3) family caregivers' concern and protection, 4) open communication, 5) establishing a trustworthy relationship, and 6) clarifying expectations. To maintain independent lives for people with dementia, health care professionals must facilitate and support shared decision-making using an open and trustworthy communication. CONCLUSION: To facilitate user-involvement, health care professionals need to develop and implement strategies that consider the perspectives of people with dementia and support the relationship between people with dementia and their informal caregivers.

Self-reported quality of life in people with dementia attending a day-care programme in Norway: A 24-month quasi-experimental study.

The objectives of the study were (a) to compare self-reported Quality of Life (QoL) in a 24-month follow-up of people with dementia attending day care designed for people with dementia (day-care group, DC) with people with dementia who did not attend day care (control group, CG) and (b) to explore factors associated with QoL. A quasi-experimental design with a 24-month follow-up period was used. The DC group included 181 participants recruited from 53 day-care services. The CG included 76 participants recruited from 19 municipalities with no available day care designed for people with dementia. The sample covered the four health regions of Norway and inclusion period lasted from December 2013 to July 2015. The Quality of Life in Alzheimer's Disease (QoL-AD) scale was used as the outcome measure. The differences in QoL between groups and the associations between participant characteristics and QoL, such as depressive symptoms and functional dependency, were examined using a linear mixed model. In the multiple model, the overall trend in QoL did not differ significantly between the DC and CG. However, the DC group exhibited significantly higher self-reported QoL than the CG at all time points (p < 0.001 at T0, p = 0.018 at T12, and p = 0.006 at T24). Participants with shallow or no awareness who attended day care had significantly higher scores on QoL-AD than persons with full awareness (p = 0.017). More depressive symptoms (p < 0.001) and higher functional dependency (p < 0.001) were associated with lower self-reported QoL. The study revealed higher scores of self-reported QoL among people attending day care compared with those who did not attend, showing that day care might have positive impact on the lives of people with dementia.

The COVID-19 pandemic as experienced by the spouses of home-dwelling people with dementia - a qualitative study.

BACKGROUND: Worldwide, restrictive measures have been taken to manage the spread of the COVID-19 pandemic. Social distancing and self-isolation have considerably affected the lives of people with dementia and their informal caregivers. The purpose of the study was to explore the consequences of the COVID-19 pandemic as experienced by the spouses of home-dwelling people with dementia in Norway. METHODS: The study had a qualitative descriptive design using individual telephone interviews for data collection. A total sample of 17 spouses of people with dementia were included, 14 women and three men ages 52 to 82 years. A qualitative content analysis following six steps inspired by Graneheim and Lundman was used to identify the categories presented. RESULTS: The participants emphasized four main perspectives: 1) Radical changes in available services, 2) Restrictions changed everyday life, 3) Impacts on health and well-being, and 4) Actions that made life easier. The participants also described how positive activities and easily accessible services helped them in this situation. CONCLUSIONS: The governmental restrictions of the COVID-19 pandemic resulted in radical changes in available services with severe consequences for the lives and well-being of home-dwelling people with dementia and their spouses. Examples of coping strategies and possible psychosocial interventions compatible with virus precautions were identified. The potential of such interventions should be further explored to meet the needs of vulnerable groups in situations like a pandemic.

Person-centered dementia care in home care services - highly recommended but still challenging to obtain: a qualitative interview study.

BACKGROUND: Dementia is one of the main causes of disability and dependence in older people, and people with dementia need comprehensive healthcare services, preferably in their own homes. A well-organized home care service designed for people with dementia is necessary to meet their needs for health- and social care. Therefore, it is important to gain knowledge about how people with dementia experience the home care service and if the service responds to their wishes and needs. The aim of this study was to explore the experience of home care services among people with dementia, to understand the continuity in services, how the service was adapted to people with dementia, and how the patient experienced person-centered care and shared decision-making. METHODS: We used a qualitative, exploratory design based on a phenomenological-hermeneutic approach and performed individual in-depth interviews with persons with dementia. A convenience sample of 12 persons with moderate to severe degrees of dementia from four Norwegian municipalities participated in the study. The interviews were conducted in February 2019. RESULTS: The findings identified that the participants appreciated the possibility to stay safely in their own homes and mostly experienced good support from staff. They expressed various views and understanding of the service and experienced limited opportunities for user involvement and individualized, tailored service. The overall theme summarizing the findings was: "It is difficult for people with dementia to understand and influence home care services, but the services facilitate the possibility to stay at home and feel safe with support from staff." CONCLUSION: The participants did not fully understand the organization of the care and support they received from the home care services, but they adapted to the service without asking for changes based on their needs or desires. Although person-centered care is recommended both nationally and internationally, the participants experienced little inclusion in defining the service they received, and it was perceived as unclear how they could participate in shared decision-making.

Staff's perspectives on the organization of homecare services to people with dementia-A qualitative study.

AIMS: The aim of the study was to explore the experiences of homecare staff about the impact of the organization of homecare services for people with dementia. DESIGN: This study has a qualitative, exploratory design based on a phenomenological-hermeneutic approach, using individual in-depth interviews with homecare staff to collect data. METHODS: A convenience sample of 14 homecare staff from five municipalities participated in the study. Main topics introduced: (a) how homecare services for people with dementia are organized and (b) challenges in respondents' everyday practice of caring for people with dementia. Interviews were conducted from October to December 2017. RESULTS: Three main themes were identified from the interviews. (a) Complexity and need for individualized facilitated homecare services; homecare services were described as complex in regard to both the patient and the service. The complexity of the service made it challenging to tailor the service to the individual patient. (b) The importance of trust and relationships; establishing trust in the relationship between the patient and the staff resulted in better-quality care. This was crucial for identifying the patient's need for help. (c) Organizational challenges; homecare services could be vulnerable to changes in the organization. Practical tasks and following the daily scheduled task list were often prioritized at the expense of an individually tailored service.

Limited Benefit of Marine Protein Hydrolysate on Physical Function and Strength in Older Adults: A Randomized Controlled Trial.

Age-related muscle wasting can compromise functional abilities of the elderly. Protein intake stimulates muscle protein synthesis; however, ageing muscle is more resistant to stimuli. This double-blinded, randomized, controlled trial is one of the first registered studies to evaluate the effects of a supplement of marine protein hydrolysate (MPH) on measures of physical function and strength. Eighty-six older adults received nutritional supplements containing 3 g of MPH or a placebo for up to 12 months. Short Physical Performance Battery (SPPB), grip strength and gait speed were measured, and dietary intake was registered at baseline, 6 months, and 12 months. No difference was found between the intervention and control groups in mean change in SPPB (independent sample t-test, p = 0.41) or regarding time trend in SPPB, grip strength, or gait speed (linear mixed model). The participants in our study were well functioning, causing a ceiling effect in SPPB. Further, they had sufficient protein intake and were physically active. Differences in physical function between those completing the intervention and the dropouts might also have created bias in the results. We recommend that future studies of MPH be carried out on a more frail or malnourished population.

Protein Intake, Protein Mealtime Distribution and Seafood Consumption in Elderly Norwegians: Associations with Physical Function and Strength.

Protein intake is considered important in the maintenance of muscle health in ageing. However, both the source and mealtime distribution of protein might affect the intake of protein and its effect on muscle protein synthesis. In this study, protein intake, mealtime distribution of protein, and seafood consumption were assessed in 92 older adults (aged 65+), and associations with physical performance (Short Physical Performance Battery (SPPB)), grip strength and gait speed were assessed in a multiple linear regression analysis. The participants had a mean age of 73 ± 8.9 years. Mean protein intake was 1.1 g/kg body weight. Protein intake was well distributed, with coefficient of variance between meals (CV meals) 0.6 ± 0.3. However, dinner had the highest protein intake. No associations were found between the nutrition factors and physical performance or strength; however, this result might have been caused by a ceiling effect in the chosen test batteries, as the mean score on SPPB was 10.3 ± 2.7, and 48.9% of the participants reached the top score of 12 points. Mean grip strength was 44.4 ± 9.4 kg (men) and 26.2 ± 6.8 kg (women). Mean gait speed was 1.0 ± 0.3 m/s. The interaction analysis suggests that there might be gender differences in the effect of seafood consumption on gait speed.

I need to be who I am: a qualitative interview study exploring the needs of people with dementia in Norway.

OBJECTIVE: Many people with dementia receive community services. These services are often based on the needs of informal caregivers and professional caregivers' assessment. User involvement and participation are main objectives in the Norwegian National Dementia Plan 2020. To enhance user involvement and individual tailoring of healthcare services, more information is required about the needs of people with dementia. The aim of this study was to explore the experienced needs of people with dementia in order to facilitate user involvement in provided services. METHODS: An explorative cross-sectional study design was used. We performed semistructured interviews with people with dementia who were recruited from all regions of Norway. The sample comprised 35 participants diagnosed with dementia. The interviews were audio-recorded and transcribed, and the data material was analysed using a qualitative content analysis. RESULTS: Three main categories emerged from the interviews: (1) to stay connected; (2) to be active and participate; and (3) to live for the moment. The overarching theme was: the need to be who I am. CONCLUSIONS: People with dementia participating in the study were heterogeneous regarding wants and requirements. Most of them expressed the need and wish to hold on to who they are. Close and robust relations with family and friends can give significant support to people with dementia. However, living with dementia might put considerable strain on relations. Services should provide support to enhance relationships, encourage existing networks to remain stable and facilitate participation in meaningful activities for people living with dementia.

What are the needs of people with dementia in acute hospital settings, and what interventions are made to meet these needs? A systematic integrative review of the literature.

BACKGROUND: Research aiming to improve the hospital experience for patients with dementia and their informal carers is strongly recommended. The present review aimed to describe the research on interventions to meet the needs of people with dementia in acute hospital settings regarding physical environment, organization of care, and staff knowledge of dementia and competence in person-centred care. An integrative review design was applied. We searched for studies in PubMed, Ovid Medline, Cinahl, Embase, Swemed+, and Cochrane databases using the Mixed Methods Appraisal Tool (MMAT) for quality evaluation. Twenty-seven articles were included, describing the perspectives of people with dementia, informal carers, and professional carers. The MMAT score ranged from two to four. Twelve studies described needs and experiences, mostly using a qualitative design. Common themes and results were synthesized. The studies identified a need to enhance staff competence regarding dementia and person-centred care. Fifteen studies described interventions: two were qualitative; three used mixed method, and 10 were quantitative, of which two were randomized controlled trials and eight were observational studies. Five types of interventions were identified. Three types could positively impact staff knowledge about dementia and person-centred care. One type was experienced as positive regarding organisation of care for patients with dementia. None of the intervention studies found evidence for effects on the identified needs regarding physical environment. CONCLUSION: The included studies suggest that staff need more knowledge regarding dementia and person-centred dementia care and that training interventions implemented to enhance staff competence had promising results. However, there is a need for research on the needs of patients with dementia in acute hospital settings regarding physical environment and effect of design elements. There is also a scarcity of intervention studies focusing on the effect of models of care that support the psychosocial needs of patients with dementia.

Applicability of the locus of control of behaviour scale for people with dementia.

OBJECTIVE: To investigate the applicability of the Locus of Control of Behaviour scale (LoCB) for people with dementia. METHOD: A sample of 534 participants with dementia (78.4 mean age, 58% female) were included. Assessment included the LoCB, the Montgomery-Aasberg Depression Rating Scale (MADRS), the Mini-Mental Status Examination Norwegian revised (MMSE-NR) and the Instrumental Activities of Daily Living (I-ADL). Completion percentages and internal reliability of LoCB were examined for predefined MMSE-NR groups (0-4, 5-9, 10-14, 15-19, 20-24, 25-27, and 28-30). Factors associated with completion were analysed, and a principal component analysis (PCA) of the LoCB was performed. Sum score and component subscale scores were compared to MADRS and MMSE-NR scores. RESULTS: In total, 234 participants completed the LoCB. Completion percentages ranged from 74% (MMSE-NR 28-30) to 0% (MMSE-NR 0-9). Internal reliability was between 0.80 and 0.72 in groups with MMSE-NR > 9, except in MMSE-NR 20-24 (0.52). Age, MMSE-NR and education were associated with completion. The PCA yielded three components - powerful others, internal, and luck/fate - with explained variance of 41.3%. Participants with MADRS > 7 scored higher on the LoCB sum score, powerful others and internal subscale scores. No difference was found regarding the luck/fate subscale score. MMSE-NR did not affect LoCB scores. CONCLUSION: Older age, less education, and more cognitive impairment decreased the likelihood of completion. However, psychometric test results indicate that those who completed the LoCB understood the questions, even with severe cognitive impairment. We conclude, therefore, that the LoCB is applicable for investigating control orientation among people with dementia.

Facilitation of activities for people with dementia in day care: a qualitative study exploring the experiences of staff.

Background: Day care service (day care) is recommended as an activity service for home-dwelling people with dementia in Norway. However, there is limited knowledge about strategies to promote engagement and participation in activities at day care. The aim of this study was to gain understanding of the staff's experiences on how to enhance engagement and participation in activities for attendees. Methods: The study has a qualitative design, using group interviews with staff and field observations at day care designed for people with dementia. Thematic content analysis was used to analyze interviews, and the findings from the observations were used to illuminate the findings in the interviews. Three group interviews including a total of 10 staff participants were conducted. Additionally, 35 attendees were observed during 2 days of field observations at each day care. Results: The main theme that emerged from the analysis was the staff's primary objective to make meaningful days for the attendees. To achieve this, the importance of having individual knowledge about the attendees to enhance relationships, creating a balanced group composition, personal competence and skills of the staff, and the importance of using activities in different ways, was highlighted. Most findings from the field observations coincide with those in the interviews. However, the observations revealed that the staff seemed to have insufficient knowledge of offering individual tailored and structured meaningful activities to the attendees. There is a potential of including the attendees even more in the ongoing activities. Conclusion: Staff play an important role in promoting and facilitating activities to increase engagement and participation in activities. There is a potential for greater structured use of activities and cognitive stimulation. To avoid occupational injustice and the risk of decreased health and well-being among home-dwelling people with dementia, more differentiated and individual tailored services are needed.