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Table 1 Missing value percentages

From: Evaluating privacy-preserving record linkage using cryptographic long-term keys and multibit trees on large medical datasets

Identifier NSW morbidity (public hospital) NSW morbidity (private hospital) WA morbidity
First Name 3% 100% <1%
Middle Name 54% 100% 41%
Last Name <1% 100% <1%
Date of Birth 0% 0% <1%
Sex <1% <1% <1%
Suburb <1% 3% <1%
Address 2% 22% <1%
Postcode <1% 3% <1%
# Records 13810088 6498579 6772949