A retrospective cohort consisting of a non-probabilistic sample of convenience limited to a time frame of 6 months was studied using cross mapping as a methodological tool. It was performed through the transcription and analysis of 3 nursing records, at admission, after 24 and 48 hours, in the medical records of children with heart disease, in a federal hospital in the city of Rio de Janeiro.
Results:
The data obtained from medical records were submitted to descriptive analysis and agreement between the researcher and expert nurses; it was measured using the Kappa coefficient.