Care Keys Data and Statistical Methods
In order to elaborate the instruments, test the Care Keys methodology and build models, it was necessary to have different databases, covering all relevant client groups in all participant countries and containing measurements of all variables that might influence the crQoL of clients. The first databases were developed to test and pilot the various instruments for final data collection (see Chapter 2). After the instrumentation was finalised, national data collection took place during November 2004–March 2005, using common tools and a common data collection procedure. The national data sets were then combined to create a pooled database for empirical research that covered all the areas necessary for checking hypotheses and model building.
Merging national data sets, cleaning, handling missing values, making imputations (where necessary and possible).
Exploratory analysis of data (on national and integrated, conditionally European level) to find the leading tendencies and estimate the distributions of variables, checking working hypotheses.
Compressing the data, calculating new variables (indexes).
Finding key-indicators with the aim of optimising the list of variables that would be measured in future.
Measuring dependencies and building models describing the factors influencing quality of life (QoL).
Creating meta-models to follow the multilevel structure of factors influencing the QoL of clients via quality of care (QoC) and other factors.
Mainly classical multivariate statistical methods were used in the data analysis, using the SPSS and SAS packages.
KeywordsHome Care Descriptive Power Home Care Client Care Documentation Pool Database
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