Pairwise deletion is a statistical method used to handle missing data in research studies. When data is collected, it is common to encounter missing values. Pairwise deletion involves using all available data points for each pair of variables, rather than excluding an entire case (subject) when one or more values are missing. This method is particularly useful in pediatric research where missing data can be a significant issue due to various factors like non-compliance or difficulties in data collection from children.
