RESUMO
BACKGROUND: The implementation of clearly structured dementia-specific case conferences could be an important tool to enable nursing staff to properly analyse and manage challenging behaviour in nursing home residents with dementia. A process evaluation of the responses of nursing homes to the implementation of WELCOME-IdA (Wittener model of case conferences for people with dementia - the Innovative dementia-oriented Assessment tool) was carried out to gain insight into which key elements of the intervention were adopted by the nursing homes and which elements were adapted. METHODS: This study was part of a larger process evaluation using a qualitative design. Thirty-four semi-structured telephone interviews and 15 focus group interviews were conducted in four nursing homes. The interviews were analysed using deductive content analysis, although inductive categories have been developed. RESULTS: Nursing home staff adopted the roles of moderator, case reporter, keeper of the minutes and reflection partner in WELCOME-IdA, but the selection of the staff members who filled these roles differed across nursing homes. The recommended group size of 5-8 participants per case conference was sometimes adopted. The key element of having core nursing teams who participated continuously in all case conferences was not adopted at all. Instead, there was a high level of rotation among staff members. The pre-defined process structure of WELCOME-IdA was adapted in such a way that the assessment of the residents' behaviour and the selection of the relevant domain for the behaviour analysis were conducted in advance of the case conference. The evaluation of the interventions was also organized differently. CONCLUSION: The scope of the response implies that WELCOME-IdA requires further adaptation to the requirements of nursing processes in nursing homes. The results provide important information on the selection of role keepers and offer insights into a) how knowledge of the structured training was circulated and transformed into self-organized case conferences and b) how knowledge was circulated throughout the entire processing of one case. Thus, these results can be used to optimize intervention and implementation. Overall, the intervention should allow more possibilities for tailored adaptation than it currently does.
RESUMO
BACKGROUND: A system of dementia-specific case conferences (WELCOME-IdA) was evaluated using a stepped-wedge design in six nursing homes (NHs) to enable nursing staff to analyse properly the behavioural and psychological symptoms (BPSD) of residents with dementia. A process evaluation of the context, the recruitment and target populations reached (residents and nursing staff) and the delivery of the intervention and implementation strategy was carried out to explore the lack of effectiveness of WELCOME-IdA on the residents' prevalence of BPSD. METHODS: This study was part of a larger process evaluation using a mixed-methods design. Standardised questionnaires, semi-structured interviews, attendance lists, standardised protocols and written self-reports were used to collect the data. The quantitative data were analysed by calculating descriptive statistics. The qualitative interviews were analysed using deductive content analysis and the self-reports were analysed using a documentary analysis. RESULTS: None of the NHs had prior experience with dementia-specific case conferences on a specific concept related to BPSD. The number of residents for whom a dementia-specific case conference was held was lower than expected. The number of nursing staff reached was high, although as defined in the study protocol, core nursing teams continuously participating in all components of the intervention were not established throughout the study. An analysis of the delivery of the intervention showed a reduction in the frequency of dementia-specific case conferences and deviations in the process structure and role structure of WELCOME-IdA. The strategy used to facilitate the implementation of WELCOME-IdA was mostly followed. An analysis of the recruitment of residents indicated that the variation in which residents were included in the study sample was high and that the intended sample size required to achieve a power >80% was not reached. CONCLUSION: An analysis of the process evaluation data indicated that there were inaccuracies in the implementation of WELCOME-IdA and there were methodological limitations within the design of the effectiveness trial, both of which could explain the lack of effectiveness of WELCOME-IdA. To optimise the process structure of WELCOME-IdA, an assessment of BPSD and a pre-selection of possible domains for the behavioural analysis could be conducted prior to a dementia-specific case conference. TRIAL REGISTRATION: ISRCTN20203855 . Registered on 10 July 2013.
