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Table 2 The fraction of the records potentially identifiable by single or combinations of variables

From: Exploring the tradeoff between data privacy and utility with a clinical data analysis use case

Single or combinations of variables

% Records potentially identifiable

Sex

0%

Age

0.52%

Primary diagnosis

17.75%

Sex + Primary diagnosis

25.02%

Sending hospital

27.71%

Sex + Sending hospital

38.10%

Sex + Age + Primary diagnosis

83.72%

Age + Sending hospital

88.40%

Primary diagnosis + Sending hospital

93.59%

Age + Sending hospital + Primary diagnosis

98.70%

Sex + Age + Sending hospital + Primary diagnosis

98.70%