Complex intervention in augmentative and alternative communication (AAC) care in Germany: a study protocol of an evaluation study with a controlled mixed-methods design

Process evaluation of a complex intervention in augmentative and alternative communication care in Germany: a mixed methods study

BACKGROUND

In Germany, clear care pathways for people without natural speech who require augmentative and alternative communication (AAC) are currently lacking. Therefore, AAC is often not sustainably implemented in everyday life. For this reason, a complex intervention was developed that supplements existing AAC consultation with additional AAC training, AAC therapy, and case management. This article presents the results of the process evaluation of the complex intervention. It examines (1) how caregivers and AAC consultants rate the intervention (2), which contextual factors influence its implementation, and (3) the acceptance, use competence, and use of the new AAC system.

METHODS

The process evaluation used a mixed methods design. Quantitative data were collected with a longitudinal survey of caregivers of AAC users in the intervention and comparison groups at three time points (T0: after AAC consultation; T1: 4 weeks after AAC system receipt; T2: 4 months after AAC system receipt). Semi-structured focus group interviews were conducted with caregivers of AAC users and with AAC consultants. The quantitative data were analysed descriptively and with nonparametric mean value comparisons. The qualitative results were analysed using structured qualitative content analysis.

RESULTS

The evaluation and presentation of results were based on the Medical Research Council process evaluation guidance by Moore et al. The intervention elements were rated positively. AAC training and therapy enabled the participants to use the AAC system effectively in different contexts. Case management provided support, particularly in the event of problems in the care process. However, the results also show the heterogeneity of the intervention, as it depended on various contextual factors. Overall, acceptance, use competence, and use of the AAC system were rated higher in the intervention group than in the comparison group.

CONCLUSIONS

The process evaluation illustrates various contextual factors that can influence the implementation of the AAC intervention. The results highlight the potential of the intervention to improve AAC care and establish a sustainable use of AAC systems in everyday life. In addition, the process evaluation provides indications of how AAC interventions can be adapted for successful implementation.

TRIAL REGISTRATION

Grant number 01NVF17019.

[Reasons for non-participation in a patient survey in the context of prehospital emergency medical care by community emergency paramedics - A retrospective observational study]

BACKGROUND

In order to evaluate whether the new rescue means "community emergency paramedics" (Gemeindenotfallsanitäter [G-NFS]) relieves the emergency medical service (EMS) in the care of low-priority emergencies, the perspective of general practitioners and patients was also surveyed in a written questionnaire as part of an innovation fund project. Recruitment for participation in the study proved to be difficult. The aim of this study is to evaluate why the G-NFS decided against providing information on study participation and what measures would be necessary to include more emergency patients in surveys in the future.

METHODS

Retrospective analysis of the assignment protocols from April 1, 2021 to June 30, 2022. In addition to patient characteristics, data on treatments, interventions and recommendations to patients as well as reasons for non-participation in the patient survey were collected.

RESULTS

5,395 G-NFS protocols that contained information on non-participation were included in the analysis. The average age of the patients was 62.4 years (SD 22.7), and 50.2% were female. 57.4% of the cases were categorised as non-urgent, and 35.2% of the cases required an additional ambulance to be alerted. 404 (7.5%) patients used the EMS more than once, 1,120 (20.8%) did not have sufficient language skills, 1,012 (18.8%) patients declined study participation, and 2,975 (55.1%) patients were not able to participate according to the G-NFS assessment. Dementia/neurocognitive impairment (35%), acute/emergency situation (26.5%), mental health impairment (10.3%), and substance abuse (6.5%) were given as reasons for non-participation from the G-NFS perspective.

DISCUSSION

The results show that more than half of the patients were unable to take part in a written survey for various reasons, even though there was no need for urgent care. This could be due to a high demand for care and the complex consent procedure. In addition, further resources are required to provide needs-based care for these patients in order to relieve the burden on emergency medical care. Over half of the patients were unable to take part in a written survey for various reasons. Further research is needed to determine what consent procedures are appropriate to facilitate patients' study participation.

Making a voice heard: evaluation of a new service delivery in augmentative and alternative communication through qualitative interviews with people without natural speech

OBJECTIVE

Due to communication barriers, people without natural speech who use augmentative and alternative communication (AAC) are rarely interviewed about their healthcare needs, expectations, and experiences. This qualitative interview study aims to investigate how AAC users evaluate a new service delivery (nSD) in AAC care in Germany.

RESULTS

We conducted 8 semi-structured qualitative interviews with 8 AAC users. The results of the performed qualitative content analysis show a positive evaluation of the nSD among AAC users. Contextual factors were identified that seem to hinder the achievement of the intervention goals. These include caregivers' prejudice and inexperience with AAC and an unfavourable environment in which AAC is used.

Burden of informal caregivers of people without natural speech: a mixed-methods intervention study

BACKGROUND

People with disabilities and without natural speech often rely on care provided by informal caregivers. The caregiving situation of these informal caregivers has been poorly researched. The objectives of the study are 1) to identify stressors, resources, and coping strategies among informal caregivers of people without natural speech and 2) to examine whether a complex intervention in augmentative and alternative communication (AAC) that is not primarily tailored to the needs of informal caregivers can reduce care-related burden.

METHODS

The main components of the AAC intervention were (1) initial counselling session, (2) 4 AAC training sessions, (3) 20 AAC therapy sessions and (4) accompanying case management. The control group received only the initial counselling session. Within a quasi-experimental intervention study, survey data on self-perceived burden (Burden Scale for Family Caregivers, BSFC-s) from n = 154 informal caregivers of people without natural speech were collected at three time points between June 2018 and April 2021 from a postal survey. Qualitative interviews with n = 16 informal caregivers were conducted.

RESULTS

Caregivers reported various stressors such as limited communication with the cared-for person and concerns about the living situation in adulthood. Diverse resources and effective coping strategies, which the caregivers refer to when dealing with stressors, could also be identified. Burden was significantly reduced in the intervention group compared to the control group. According to the results of the qualitative study, AAC use led to better communication skills and a reduction in behavioural problems and thus a decreased burden.

CONCLUSIONS

The AAC intervention seems to have a positive impact on self-perceived burden. Linkages between intervention components and burden reduction as well as stressors and coping strategies could be identified and provide an evidence-based foundation for developing future holistic interventions for families with individuals without natural speech.

TRIAL REGISTRATION

German Clinical Trials Register (DRKS); ID: DRKS00013628 (registered on 05/02/2018).

"Finding Common Ground" - Impact of a Complex Intervention on Collaboration in Augmentative and Alternative Communication Care of People without Natural Speech

Purpose

Many care settings are characterized by collaboration between a variety of stakeholders. People without natural speech who rely on augmentative and alternative communication (AAC) are often strongly dependent on the involved stakeholders and collaboration among them. Since collaboration can be challenged by many barriers, this study examines the impact of a complex intervention on collaboration in AAC care.

Methods

In a quasi-experimental mixed methods intervention study which include AAC training, AAC therapy and case management, caregivers of AAC users were surveyed at 3 time points to assess collaboration and case management in the intervention versus comparison group. In addition, semi-structured focus group interviews were conducted with caregivers in the intervention group. Quantitative data were analyzed descriptively and by comparison of means. Qualitative data were analyzed using qualitative content analysis.

Results

The Mann-Whitney U-test showed significantly better collaboration in the intervention group with stakeholders that are more actively involved in AAC care, such as schools (p=0.026) and residential or social facilities (p=0.010), but not with passive stakeholders such as health insurance companies. Most aspects of case management were rated significantly better in the intervention group (p<0.001). The focus group results show mainly positive changes in collaboration with the active stakeholders, such as more commitment and openness toward AAC.

Conclusion

The results show a positive impact of the intervention on the collaboration between stakeholders involved in AAC care - especially with active stakeholders. In particular, the organization of care and the accompanying case management by the AAC consultation centers seem to positively affect collaboration.

Ability-Based Methods for Personalized Keyboard Generation

This study introduces an ability-based method for personalized keyboard generation, wherein an individual's own movement and human-computer interaction data are used to automatically compute a personalized virtual keyboard layout. Our approach integrates a multidirectional point-select task to characterize cursor control over time, distance, and direction. The characterization is automatically employed to develop a computationally efficient keyboard layout that prioritizes each user's movement abilities through capturing directional constraints and preferences. We evaluated our approach in a study involving 16 participants using inertial sensing and facial electromyography as an access method, resulting in significantly increased communication rates using the personalized keyboard (52.0 bits/min) when compared to a generically optimized keyboard (47.9 bits/min). Our results demonstrate the ability to effectively characterize an individual's movement abilities to design a personalized keyboard for improved communication. This work underscores the importance of integrating a user's motor abilities when designing virtual interfaces.

Caregiver burden and proxy-reported outcomes of people without natural speech: a cross-sectional survey study

OBJECTIVE

To examine interrelations between care-related burden on informal caregivers and their proxy assessments of outcomes in people without natural speech.

DESIGN

A cross-sectional survey.

SETTING

Data were collected in January 2019 from a postal survey of informal caregivers of people without natural speech who are insured by a large regional health insurance company in the German federal state of Lower Saxony.

PARTICIPANTS

n=714 informal caregivers of people without natural speech of all ages and with various underlying disabilities were identified and contacted via the health insurance company. Data from n=165 informal caregivers (26.4%) were obtained.

MAIN OUTCOME MEASURES

Caregiver burden (self-reported, Burden Scale for Family Caregivers), pragmatic communication skills of people without natural speech (proxy report, self-developed), health-related quality of life of people without natural speech (proxy report, DISABKIDS Chronic Generic Measure - DCGM-12) and functioning of people without natural speech (proxy report, WHO Disability Assessment Schedule 2.0).

RESULTS

The analyses revealed significant associations between caregiver burden on the one hand and both proxy-reported health-related quality of life (b=-0.422; p≤0.001) and functioning (b=0.521; p≤0.001) on the other. Adding caregiver burden to the regression model leads to a substantial increase in explained variance in functioning (R² Model 1=0.349; R² Model 2=0.575) as well as in health-related quality of life (R² Model 1=0.292; R² Model 2=0.460).

CONCLUSIONS

Caregiver burden should be considered an important determinant when informal caregivers report outcomes on behalf of people without natural speech. Longitudinal studies are recommended to better understand the burdens experienced by caregivers when supporting people without natural speech.

TRIAL REGISTRATION NUMBER

DRKS00013628.

Collaboration between stakeholders involved in augmentative and alternative communication (AAC) care of people without natural speech

Collaboration among health care providers is intended to dissolve boundaries between the sectors of health care systems. The implementation of adequate augmentative and alternative communication (AAC) care of people without natural speech depends highly on collaboration among multiple stakeholders such as speech and language pathologists, teachers, or physicians. This paper examines existing barriers to and facilitators of collaboration from a stakeholder perspective. Five heterogeneous focus group interviews were conducted with N= 32 stakeholders including speech and language pathologists, AAC consultants, teachers, employees of sheltered workshops, parents, and relatives of AAC users, and other educational professionals (e.g., employees of homes for persons with disabilities) at three AAC counseling centers in Germany. Interview data were analyzed by structured qualitative content analysis. The results show very different experiences of collaboration in AAC care. Factors were identified that can have both positive and negative effects on the collaboration between all stakeholders (e.g., openness toward AAC, knowledge about AAC, communication between stakeholders). In addition, stakeholder-specific influencing factors, such as working conditions or commitment to AAC implementation, were identified. The results also reveal that these factors may have an impact on the quality of AAC care. Overall, the results indicate that good collaboration can contribute to better AAC care and that adequate conditions such as personnel, and time-related resources, or financial conditions need to be established to facilitate collaboration.