Dyadic interactions and physical and social environment in dementia mealtime care: a systematic review of instruments

The five aspects mealtime environment observation instrument for assessing mealtime environments in nursing homes: Development and validation

AIMS AND OBJECTIVES

To further develop and validate the Mealtime instrument, an observational instrument for assessing mealtime environments in nursing homes originating from the theoretical framework: Five Aspects Meal Model (FAMM).

METHODOLOGICAL DESIGN AND JUSTIFICATION

A mealtime experience is significant for a sense of well-being. In nursing homes, residents' personal preferences, combined with their diagnoses and different stages of illness, influence their mealtime experience and provide a complexity that has been found difficult to assess. Using FAMM, a theoretical framework as its base, this study, attempts to look at different parts of the mealtime environment. FAMM structures the mealtime environment in to five aspects: room, meeting, product, management control system and atmosphere. This study's design includes instrument development and validation.

ETHICAL ISSUES AND APPROVAL

This study has been approved by the Swedish Ethical Review Authority (dnr 2019-05477).

DESIGN

Methodological study.

RESEARCH METHOD

An existing instrument, the Mealtime instrument with FAMM as a theoretical framework, was used as a foundation for the development of the Five Aspects Mealtime Environment Observation Instrument (FAME-OI). Content validity index (CVI) was used to validate FAME-OI.

RESULTS

FAME-OI's item-CVI, scale-CVI and modified Kappa displayed high validity. Changes were made in its structure and phrasing. These developments resulted in having a distinct structure in FAME-OI, in reference to FAMM.

CONCLUSION

FAME-OI is applicable for clinical use in nursing homes and in research; however, adjustments may be needed before its use in other health care facilities.

Assessing eating ability and mealtime behaviors of persons living with dementia: A systematic review of instruments

This systematic review aimed to describe the characteristics of instruments that assess eating ability and/or mealtime behaviors in persons living with dementia, and evaluate their psychometric properties. Five databases were searched for relevant records between 1/1/1980 and 5/25/2023. Records included instruments assessing eating ability and/or mealtime behaviors of people with dementia. The psychometric quality of the instruments was evaluated using the Psychometric Assessment for Self-report and Observational Tools (PAT). 45 eligible instruments were identified from 115 records. While 38 instruments were scored as having low psychometric quality, 7 had moderate quality. Edinburgh Feeding Evaluation in Dementia (EdFED), Mealtime Difficulty Scale for older adults with Dementia (MDSD), and Dementia Hyperphagic Behavior Scale (DHBS) were scored as having the highest quality (total PAT score = 9). Further refinement of existing instruments and additional psychometric testing in larger, diverse samples will improve pragmatic use in dementia mealtime care research and practice.

An ethnography of mealtime care for people living with dementia in care homes

Many people living with dementia have difficulties at mealtimes, which can result in serious complications for physical and mental health, leading to hospital admissions and even death. However, current training in mealtime care for staff working with this population has been found to be poorly reported, with variable effectiveness. It is essential that care home staff are able to provide good care at mealtimes. This study used ethnography to explore current practice in mealtime care for this population, identify good practice, and understand the factors influencing mealtime care. Approximately 28 h of mealtime observations were conducted in two UK care homes with diverse characteristics. Observations focused on interactions between care staff and residents living with dementia. Twenty-five semi-structured interviews were carried out with care home staff, family carers, and visiting health and social care professionals, to explore mealtime care from their perspectives. A constant comparative approach was taken, to probe emergent findings and explore topics in greater depth. Key thematic categories were identified, including: tensions in mealtime care; the symbolic nature of mealtime care; navigating tensions via a person-centred approach; contextual constraints on mealtime care; and teamwork in mealtime care. The findings indicated that a person-centred approach helps carers to find the right balance between apparently competing priorities, and teamwork is instrumental in overcoming contextual constraints. This evidence has contributed to development of a training intervention for care home staff. Future research should investigate the feasibility of mealtime care training in care homes.

Occupational Therapy Practice Guidelines for Adults Living With Alzheimer's Disease and Related Neurocognitive Disorders

IMPORTANCE

There are currently 55 million adults living with declining functional cognition-altered perception, thoughts, mood, or behavior-as the result of Alzheimer's disease (AD) and related neurocognitive disorders (NCDs). These changes affect functional performance and meaningful engagement in occupations. Given the growth in demand for services, occupational therapy practitioners benefit from consolidated evidence of effective interventions to support adults living with AD and related NCDs and their care partners.

OBJECTIVE

These Practice Guidelines outline effective occupational therapy interventions for adults living with AD and related NCDs and interventions to support their care partners.

METHOD

We synthesized the clinical recommendations from a review of recent systematic reviews.

RESULTS

Twelve systematic reviews published between 2018 and 2021 served as the foundation for the practice recommendations.

CONCLUSION AND RECOMMENDATIONS

Reminiscence, exercise, nonpharmacological behavioral interventions, cognitive therapy, sensory interventions, and care partner education and training were found to be most effective to support adults living with AD and related NCDs. Plain-Language Summary: These Practice Guidelines provide strong and moderate evidence for occupational therapy practitioners to support adults living with Alzheimer's disease (AD) and related neurocognitive disorders (NCDs) and their care partners. They provide specific guidance for addressing the decline in cognition, behavioral and psychological symptoms of dementia, and pain experience of adults living with AD and related NCDs. The guidelines also describe interventions to support care partners. With support from the evidence, occupational therapy practitioners are better equipped to address the unique needs of adults living with AD and related NCDs and their care partners.

Mealtime interactions between nursing home staff and residents with dementia: a behavioral analysis of Language characteristics

BACKGROUND

Quality staff-resident communication is crucial to promote outcomes in nursing home residents with dementia requiring assistance during mealtimes. Better understanding of staff-resident language characteristics in mealtime interactions help promote effective communication, yet evidence is limited. This study aimed to examine factors associated with language characteristics in staff-resident mealtime interactions.

METHODS

This was a secondary analysis of 160 mealtime videos involving 36 nursing staff and 27 residents with moderately severe to severe dementia in 9 nursing homes. Mixed-effects models was used to examine the relationships between factors and language characteristics in staff-resident mealtime interactions. The independent variables were speaker (resident vs. staff), utterance quality (negative vs. positive), intervention (pre- vs. post-communication intervention), and resident dementia stage and comorbidities. The dependent variables were expression length (number of words in each utterance) and addressing partner by name (whether staff or resident named their partner in each utterance). All models included staff, resident, and staff-resident dyad as random effects.

RESULTS

Staff (utterance n = 2990, 99.1% positive, mean = 4.3 words per utterance) predominated conversations and had more positive, longer utterances than residents (utterance n = 890, 86.7% positive, mean = 2.6 words per utterance). As residents progressed from moderately severe to severe dementia, both residents and staff produced shorter utterances (z=-2.66, p = .009). Staff (18%) named residents more often than residents (2.0%; z = 8.14, p < .0001) and when assisting residents with more severe dementia (z = 2.65, p = .008).

CONCLUSIONS

Staff-resident communication was primarily positive, staff-initiated, and resident-oriented. Utterance quality and dementia stage were associated with staff-resident language characteristics. Staff play a critical role in mealtime care communication and should continue to initiate resident-oriented interactions using simple, short expressions to accommodate resident declining language abilities, particularly those with severe dementia. Staff should practice addressing residents by their names more frequently to promote individualized, targeted, person-centered mealtime care. Future work may further examine staff-resident language characteristics at other levels of language using more diverse samples.

Development and psychometric testing of the dyadic communication observational coding scheme in DEmentia care (DCODE): family dyadic communication in dementia

OBJECTIVES

Understanding family dyadic communication in dementia is essential to promote the well-being of family caregivers and persons living with dementia. The Dyadic Communication Observational coding scheme in DEmentia care (DCODE) was developed and tested to assess family dyadic communication in dementia.

METHODS

The DCODE was developed from a review of literature, expert review, and pretesting. A secondary analysis of the 75 in-home care video observations from 19 family caregiver-care recipient dyads was conducted to test psychometric properties.

RESULTS

The DCODE consists of 43 caregiver items and 41 care recipient items. We observed internal consistency, intra-rater reliability, and inter-rater reliability as adequate. Content validity and convergent validity were moderate. Predictive validity was moderate in predicting caregiver burden. The overall psychometric properties demonstrated a moderate quality of the DCODE.

CONCLUSIONS

Findings provided the preliminary psychometric evidence of the DCODE as a promising instrument to assess family dyadic communication in dementia. Future testing for concurrent, divergent, and structural validity of the DCODE is needed.

Temporal Relationships Between Nursing Home Staff Care Approaches and Behaviors of Residents With Dementia During Mealtimes: A Sequential Analysis

Background and Objectives

Optimal dyadic interactions are critical to quality mealtime care and outcomes. Prior work supports associative relationships between staff approaches and individual mealtime behaviors, yet evidence on temporal relationships is limited. This study examined temporal associations between staff approaches and resident behaviors during mealtimes.

Research Design and Methods

Videotaped mealtime observations (N = 160) involving 36 staff and 27 residents (53 staff-resident dyads) in 9 nursing homes were analyzed. Sequential analyses using 5-, 10-, and 15-second time windows were conducted for resident positive, neutral, and challenging behaviors as antecedents as well as consequences of staff person-centered and task-centered approaches.

Results

Residents exhibited positive verbal (35.0%) and positive/neutral nonverbal (12.6%) behaviors, as well as challenging behaviors including functional impairments (27.7%) and resistive behaviors (24.7%). Staff primarily used person-centered approaches (54.1% verbal, 40.3% nonverbal); task-centered approaches were less frequent (5.6%). Immediately (within 5 seconds) after staff person-centered approaches, resident positive/neutral and resistive behaviors were more likely, and functional impairments less likely. After staff task-centered approaches, resident positive verbal and resistive behaviors were less likely. After resident positive/neutral behaviors, staff person-centered approaches were more likely. After resident functional impairments, staff person-centered verbal approaches were less likely, and task-centered approaches more likely. After resident resistive behaviors, all staff approaches were more likely. The strength of temporal relationships diminished in 10-second and 15-second time windows.

Discussion and Implications

Staff-resident positive interactions were associated with more subsequent positive interactions. Person-centered care was associated with fewer subsequent resident functional impairments and more subsequent resistive behaviors. Resident resistive behaviors were associated with more subsequent person-centered and task-centered care. Findings confirm the importance of facilitating positive staff-resident interactions and managing functional impairments using person-centered care. Resistive behaviors require additional awareness and attention beyond commonly used person-centered care approaches. Further investigation of temporal relationships is needed using larger diverse samples.

Chewing and Swallowing Abilities of Persons Living With Dementia: A Systematic Review of Psychometric Properties of Instruments

Background and Objectives

It is critical to use validated instruments to diagnose and manage chewing and swallowing problems of persons living with dementia. The study aimed to synthesize the characteristics and psychometric quality of instruments that assess the chewing and swallowing abilities of persons living with dementia.

Research Design and Methods

The systematic review was used to conduct this study. We searched 5 electric databases for records published from January 1, 1980, to July 8, 2022. Records were eligible if they included any instrument to assess chewing ability or swallowing ability in the dementia population. Eight characteristics of eligible instruments were extracted from the records: (1) development process, (2) operationalized concept/construct, (3) sample and setting, (4) administration method, (5) items, (6) scoring format/interpretation, (7) reliability, and (8) validity. The psychometric assessment for self-report and observational tool was used to evaluate 12 psychometric properties of eligible instruments.

Results

In total, 11,074 records were reviewed. Thirty-five eligible instruments, including observational tools, self-report questionnaires, and physiological instruments, were identified from 60 records. All 8 instruments assessing chewing ability were evaluated as having low psychometric quality, and only 3 out of 27 instruments assessing swallowing ability were evaluated as having moderate psychometric quality. Fifteen instruments were tested for only 1 type of psychometric property, limiting the overall evaluation of psychometric evidence.

Discussion and Implications

The study findings inform the use and adaptation of appropriate instruments for practice and research. All existing instruments warrant further validation in larger samples to expand use in diverse care settings. This review described and evaluated current instruments measuring chewing and swallowing abilities and potential use in research and clinical practice to plan for and evaluate the effectiveness of mealtime and oral care practice and reduce health-related negative outcomes of persons living with dementia.

Psychometric Properties of Instruments Measuring Dyadic Communication and Environment in Dementia Care: A Systematic Review

BACKGROUND AND OBJECTIVES

A valid and reliable assessment of dementia dyadic communication and environment is essential to understand and facilitate social interaction and quality care. This review described the characteristics and evaluated psychometric properties of instruments that assess dyadic communication and environment between persons living with dementia and their caregivers.

RESEARCH DESIGN AND METHODS

A systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guideline. Literature published until June 30, 2021, was searched. Ten psychometric properties and the ratio of sample size to the number of items were evaluated using the Psychometric Assessment for Self-report and Observational Tool.

RESULTS

A total of 3,708 scholarly records was identified, and 24 eligible instruments from 48 scholarly records were evaluated. Twenty-two instruments assessed dyadic communication, and 2 assessed both dyadic communication and environment. Eighteen instruments were developed to assess task-related communication and 15 for paid (professional) caregivers. All instruments were scored as low psychometric quality (score range = 0-7). Behavioral Observation Scoring System was scored the highest (total score = 7), followed by Dyadic Dementia Coding System, Grid for observation of physical and verbal behaviors of caregiver and resident, and Trouble-Indicating Behaviors and Repair (total score = 6). These instruments had low psychometric evidence for internal consistency, content validity, and structural validity.

DISCUSSION AND IMPLICATIONS

Existing instruments are in the early stages of development and validation in dementia population. Further testing is needed in diverse communication types in paid and unpaid dementia caregiver populations.

Person-centred and task-centred care: Impact on mealtime behaviours in nursing home residents with dementia

INTRODUCTION

Mealtime is a critical daily activity to ensure nutrition, hydration, function and socialisation. Interactions between staff and residents during mealtimes are complex and dynamic processes including verbal and/or nonverbal communication that can be positive/neutral or challenging. This study examined characteristics of and relationships between person-centred and task-centred care and positive/neutral and challenging mealtime behaviours in persons with dementia.

METHODS

This study was a secondary behavioural analyses of videotaped mealtime observations (n = 110) involving 42 unique staff-resident dyads (29 staff and 25 residents with dementia) in nine nursing homes. The refined Cue Utilization and Engagement in Dementia mealtime video-coding scheme was used to code videos during 2019-2020. Dependent variables representing resident mealtime behaviours included positive verbal behaviours, positive/neutral nonverbal behaviours, functional impairments (nonverbal) and resistive behaviours (verbal and nonverbal). Independent variables were staff person-centred and task-centred approaches (verbal and nonverbal). Relationships between resident mealtime behaviours and staff approaches were examined using bivariate analysis and logistic regression.

RESULTS

Staff person-centred verbal approaches were associated with resident positive verbal behaviours (OR = 1.38, 95% CI = 1.09-1.76), functional impairments (OR = 0.81, 95% CI = 0.66-1.00) and resistive behaviours (OR = 1.65, 95% CI = 1.18-2.31). Staff person-centred nonverbal approaches were associated with resident functional impairments (OR = 1.33, 95% CI = 1.02-1.74). Staff task-centred approaches were not associated with resident positive/neutral or challenging mealtime behaviours.

CONCLUSION

This study characterised staff approaches and resident behaviours during mealtime care and provided preliminary support on associations between staff person-centred approaches and resident positive and challenging behaviours. Person-centred mealtime care practice is recommended by focusing on support of common, challenging behaviours and reinforcement of positive behaviours with adequate consideration of individual needs and preferences.

Target and suspect analysis of liquid crystal monomers in soil from different urban functional zones

Recent studies have reported the occurrence of liquid crystal monomers (LCMs) in sediment, indoor dust, hand wipes, and human serum samples; however, information regarding their contamination status in soil is currently unavailable. The concentrations of 39 target LCMs were determined in n = 96 surface soil samples collected from five different urban functional zones including agricultural, scenic, industrial, commercial, and residential zones. We observed that 76 of 96 surface soil samples contained at least 19, 13, 16, 19, and 14 of the 39 target LCMs that were detectable in samples from agricultural, scenic, industrial, commercial, and residential zones, respectively. The LCMs in the samples from the agricultural zone exhibited the highest mean concentrations of 12.9 ng/g dry weight (dw), followed by those from commercial (5.23 ng/g dw), residential (3.30 ng/g dw), industrial (2.48 ng/g dw), and scenic zones (0.774 ng/g dw). Furthermore, strong and statistically significant (p < 0.05) correlations were observed for several pairs of LCMs (3cH2B vs. 5bcHdFB in the agricultural zone; 5bcHdFB vs. 2bcHdFB, 5bcHdFB vs. 3cH2B in the commercial zone; 5bcHdFB vs. 2bcHdFB in the industrial zone), indicating that they might have similar commercial applications and sources. Based on a newly established database containing 1173 LCMs, suspect screening was applied to discover other LCMs in these 96 soil samples using gas chromatograph coupled with quadrupole-time-of-flight mass spectrometry (GC-QTOF/MS). We tentatively identified 51 LCM formulas with 69 chemical structures. Collectively, this study provides the first evidence for the occurrence of LCMs in soil samples, and suggests that LCMs could be widely distributed across all five urban functional zones.

Sequential relationships of food intake in nursing home residents with dementia: Behavioural analyses of videotaped mealtime observations

AIMS AND OBJECTIVES

This study examined the sequential relationships of food intake and the moderating role of the characteristics of intake and resident conditions.

BACKGROUND

Nursing home residents commonly experience insufficient food intake. While multilevel factors influence intake, evidence on sequential relationships is lacking.

DESIGN

The study was an observational study using secondary, behavioural analyses following the STROBE Statement.

METHODS

Videotaped observations (N = 160) collected from a dementia communication trial during 2011-2014 were coded using the refined Cue Utilisation and Engagement in Dementia Mealtime Video-coding Scheme during 2018-2019. The 160 videos involved 27 residents living with dementia and 36 staff in 9 nursing homes. Independent variables were the state (solid intake, liquid intake, no intake) of an intake episode occurring during mealtime (current episode), eating technique (resident-initiated, staff-facilitated) used in the next episode occurring after the current episode (subsequent episode), interval between adjacent episodes, and resident comorbidities and dementia stage. The dependent variable was the state of subsequent episode.

RESULTS

Successful liquid and solid intake increased odds of subsequent liquid and solid intake. Comorbidities were associated with decreased odds of subsequent liquid and solid intake for staff-facilitated episodes. When liquid intake occurred, staff-facilitation decreased odds of subsequent liquid intake; longer intervals between adjacent episodes increased odds of subsequent solid intake.

CONCLUSION

Food intake was strongly and sequentially associated, and such temporal relationships were dependent on characteristics of the intake process and resident conditions.

RELEVANCE TO CLINICAL PRACTICE

The study findings supported that initiating successful intake facilitates continuity of successful intake during mealtime. Behavioural interventions tailored by comorbidities that modify characteristics of the food intake process may improve food intake.

Advances in brain barriers and brain fluids research in 2021: great progress in a time of adversity

This editorial highlights advances in brain barrier and brain fluid research in 2021. It covers research on components of the blood–brain barrier, neurovascular unit and brain fluid systems; how brain barriers and brain fluid systems are impacted by neurological disorders and their role in disease progression; and advances in strategies for treating such disorders.

Person-Centered and Task-Centered Care and Mealtime Behaviors in Nursing Home Residents With Dementia: Impact on Food Intake

Background and Objectives

Nursing home (NH) staff mealtime care approaches are associated with behaviors of residents with dementia, but their impact on food intake remains unexplored. This study examined the role of staff person-centered and task-centered approaches and resident positive, neutral, and challenging behaviors on food intake.

Research Design and Methods

Videotaped mealtime observations (N = 160) involving 36 staff and 27 residents (53 unique staff-resident dyads) in 9 NHs were coded using the refined Cue Utilization and Engagement in Dementia mealtime video-coding scheme. The dependent variable was resident food intake. The independent variables were staff person-centered approaches that support resident abilities, staff-resident (dyadic) interactions, and dining environments, staff task-centered approaches, and resident positive, neutral, and challenging behaviors. Resident challenging behaviors included mealtime functional impairments and resistive behaviors. Linear mixed modeling was used. Moderating effects of staff approaches, food type, and length of dyadic mealtime interactions (ie, video duration) were examined.

Results

The relationship between food intake and resident mealtime functional impairments was moderated by food type (p < .001). The relationship between food intake and resident resistive behaviors was moderated by food type (p = .002) and staff person-centered verbal approaches (p = .001). The relationships between food intake and staff person-centered nonverbal approaches (p = .003) and resident positive/neutral nonverbal behaviors (p = .004) were moderated by the length of dyadic mealtime interactions.

Discussion and Implications

Food intake was associated with staff person-centered approaches and resident positive/neutral and challenging behaviors. Findings emphasize the importance of facilitating positive dyadic interactions using individualized, context-based, multifaceted, person-centered care. Future research on temporal and causal relationships is warranted in larger diverse samples.

Divergent brainstem opioidergic pathways that coordinate breathing with pain and emotions

Breathing can be heavily influenced by pain or internal emotional states, but the neural circuitry underlying this tight coordination is unknown. Here we report that Oprm1 (μ-opioid receptor)-expressing neurons in the lateral parabrachial nucleus (PBL) are crucial for coordinating breathing with affective pain in mice. Individual PBL^Oprm1 neuronal activity synchronizes with breathing rhythm and responds to noxious stimuli. Manipulating PBL^Oprm1 activity directly changes breathing rate, affective pain perception, and anxiety. Furthermore, PBL^Oprm1 neurons constitute two distinct subpopulations in a "core-shell" configuration that divergently projects to the forebrain and hindbrain. Through non-overlapping projections to the central amygdala and pre-Bötzinger complex, these two subpopulations differentially regulate breathing, affective pain, and negative emotions. Moreover, these subsets form recurrent excitatory networks through reciprocal glutamatergic projections. Together, our data define the divergent parabrachial opioidergic circuits as a common neural substrate that coordinates breathing with various sensations and behaviors such as pain and emotional processing.